Sort by
Relevancy

Free Stories

100%
Sissy Slut and Stepdads part 2
My mother kicked Frankie out and swore that he was the last loser she would ever date. She believed that we were still having sex, and she was right. Pure raw animal lust drove us, and It was even better when we sneaked and got. That nervous adrenaline mixed with my passion and made me super horny a... Read full Story
Regina10 2021-02-15 4,399 Teen (18+) Crossdresser Big Tits Cumshot Masturbation Fetish Blowjob Big Cock Lingerie Guy Fucks Shemale Homemade Ass to Mouth
50%
LE PROGRAMME D'ÉCHANGE SISSY ⚧️ ⚧️
Kristy a travaillé pour Le Matriarcat. Cela semblait plus officiel que ça ne l'était vraiment. Comme si c'était un "Nouvel Ordre Mondial". C'était en fait un club dirigé par des femmes spécialisées dans certains services que les hommes paient grassement. Cela pourrait être appelé prostitution selon ... Read full Story
Femboy 2021 2023-03-25 1,458 Teen (18+) Cumshot Big Cock gangbang Interracial Sex Toys gloryhole cum in mouth femination forcé poule mouillé Maitress bdsm poule mouillé
71%
White fuckslut Tgirl & 3 BIG BLACK COCKS Initiation
You lucky, slutty BBC Tgirl fuckslut, I envy you soooooo much. This is the most erotic and best BBC story on this web site. Pleeease keep writing about your BBC fantasies. What a bargain to get gangbanged by about 30 big black studs for only 15 Euros. I loved it when you begged them to fuck you.\r\n... Read full Story
TgirlJill4BBC 2013-06-03 6,282 Stockings Cumshot Big Cock gangbang Lingerie Interracial Latex
50%
my sissy fuck scenario 1 to 3
there is also a video!!! my fantasy: 1. after sucking and fucking with him from like 9 am to 1 pm on Monday , he goes for a bike ride at least 30 km, i don't shower, he doesn't shower, while he's biking im on cam drinking smoking having fun with users, he watches me too and tells me what to ... Read full Story
Lena Scarlett 2024-11-06 105 anal Small Tits Crossdresser solo Masturbation threesome Blowjob blonde Big Cock gangbang sissy femboy Ass to Mouth
50%
lust of a sex-agenarian nana-pops
Frenzied lust of a sex-agenarian nana-pops; between dream and reality I had never fantasized of a manly man, even after offering my virginity; to a fabulous sissy. Before my new Era, my fantasy preferences were always with glabrous he-she’s, same about my relationships after… BUT BUT BUT… My last t... Read full Story
hippocampus_171 2023-07-09 5,040 anal Small Tits Amateur Group Sex Masturbation Guy Fucks Shemale Sex Toys Mature small cock big ass sissy femboy
66%
Spring Morning
First morning of spring After the long winter it was just starting to get brighter and greener, white anemones were blooming and in a few weeks spring would be at it's most beautiful phase, but for now the gloom of night and mist was just retreating back to the sea and sun was rising giving me ... Read full Story
Femboy Emmi 2020-05-11 3,836 Small Tits Crossdresser solo Lingerie
0%
girls need a daddy
Friday July 18 Hello daddy, I have arranged to meet a man next week and we are in 'phone contact. He is coming to visit me and I just need to tell him whether Wednesday or Thursday. I haven't done this yet as once done is done .... I know he wants to take photos of me but I don't know if ... Read full Story
amberdoll 2020-07-22 3,385 Stockings Small Tits Crossdresser Amateur blonde Lingerie Homemade
84%
SUMMER VACATION by Spanky de Bautumn
In our house, it was a well-known secret that my mother kept her change in the top drawer of her dresser. The same drawer she kept her slips, chemises, panties, and all other satin, nylon, or lacy ladies undergarments. During the summer, my brother and I would run to that wondrous drawer when... Read full Story
SpankydeBautumn 2021-01-22 12,924 Small Tits Crossdresser Cumshot Masturbation Fetish Blowjob Lingerie Shemale and Girl cum in mouth
50%
DE BRO À SISSY ⚧️ ⚧️
Mon ami Magnus et moi nous sommes connus presque toute notre vie. Nous nous sommes rencontrés en pré-maternelle, quand nous vivions à un pâté de maisons et demi l'un de l'autre. Nos familles étaient proches et nous avons grandi côte à côte. Nous nous connaissions depuis si longtemps; nous nous appel... Read full Story
Femboy 2021 2023-03-26 1,301 Blowjob Big Cock domination Sex Toys feminisation bbc cum in mouth bdsm scene soumission cocu poule mouillé femme chaude
50%
PREMIÈRE ÉTAPE FÉMINISANTE
Aujourd'hui, ma mère et moi sommes allés acheter des maillots de bain dans un grand magasin local. C'était en début d'après-midi et nous avions pratiquement l'endroit pour nous tous seuls. En entrant dans le magasin, nous sommes passés devant une grande colonne couverte de miroirs, et je me suis ... Read full Story
Femboy 2021 2023-01-27 1,118 Stockings Teen (18+) Small Tits Crossdresser Fetish Lingerie domination Sex Toys
85%
My Awkward Phase
My Awkward Phase ©Alexandra Rios 2019 The greatest lie is that what happens in high school doesn't matter, because life begins in college. I pretended to agree, although I never believed it, for I was the world's greatest liar. Wannabees I was hanging out with my friends Quinn, Barb and Anne ... Read full Story
the greatest liar 2019-06-14 12,262 Small Tits anal sex Latina Masturbation Bareback Creampie Blowjob Big Cock transformation gangbang Shemale and Girl Guy Fucks Shemale Sex Toys Ass to Mouth cosplay hormones high school real life situations
100%
A Perfect Pandemic: A Transsexual Transition in a Troubled Time
A Perfect Pandemic A Transsexual Transition in a Troubled Time A Novelette by Alexandra Rios Text Copyright Reserved © August, 2021 Dedication Transgender Day of Remembrance is a solemn occasion. I am offering “A Perfect Pandemic” for free as an antidote to the fear, phobia, discrimination, d... Read full Story
the greatest liar 2021-11-16 6,405 Teen (18+) Crossdresser Group Sex Big Tits Bareback Creampie Big Cock gangbang domination Guy Fucks Shemale Interracial double anal webcams
93%
Sissy Experience - Episode 1: The Beginning
Hello All, Hope you’re all doing well!! This story narrates the beginning of my crossdressing and sissy adventures. Before I begin I’ll tell you somethings about my family. We are a family of four consisting of me, mom, dad and an elder sister. I am currently 20 years old and in college. My da... Read full Story
brownsissyboi 2020-05-15 8,389 Teen (18+) Crossdresser solo Amateur Cumshot Masturbation Fetish Asian Lingerie Homemade
38%
Am I gay?
Please help me. I'm confused and unsure if I am gay. I feel so ashamed of myself. I don't want to be gay but I was molested by my neighbors at 6 years old and from then on I would wear my mom's panties or sniff my sisters while masturbating. Cumming would always make me feel guilty for what I have d... Read full Story
Chinaysissyslut 2020-02-24 6,541 Stockings Teen (18+) Small Tits Crossdresser solo Amateur Masturbation Asian Ladyboy Lingerie Homemade webcams
91%
HOW MY AUNT AND SISSY NEPHEW CHANGED MY LIFE FOREVER! (fictional
It was the very first night of my month long North Carolina July summer vacation stay when my Aunt Meg suddenly entered the bedroom that I was temporarily sharing with my younger cousin Rudy. Being so openly effeminine in his body language,voice and looks, I had already planted such dirty thoughts ... Read full Story
CDDIXIE4U 2019-01-08 34,587 Teen (18+) Crossdresser Cumshot Masturbation Bareback Shemale Fucks Guy Fetish Blowjob Big Cock Ladyboy Lingerie domination Homemade Compilation cum in mouth shemale + shemale
100%
Camming down the rabbit hole Ch3
Slowly stirring from my sleep, I stretched under the covers and a pleasant sensation spread across my torso, remembering what I was wearing when I went to bed I smiled at the caress of the fabric on my skin. It was a strangely comforting feeling, the pressure from the bra, panties and nightie felt l... Read full Story
Dani_does_Dallas 2021-08-18 5,486 Stockings Crossdresser solo Amateur Cumshot Masturbation Fetish Lingerie Sex Toys Homemade
66%
Discovering Mistress Sarah's World Part 9
Part 9 -- The Final Part Chapter 23 Leaving Work Josie's last week at work and concluding week of his normal life went quick. At work he spent time getting things in order for the next unlucky person to take over his job. Mentally he was already checked out of work. All he cared about was gett... Read full Story
shemale lover 2012-10-04 4,160 Fetish ass licking domination
91%
My Seductive Secret (True Story)
During my childhood, me and my brother used to play with two other boys who were our neighbors every weekend. One day we decided to wrestle, and I took on the youngest one, (he was about 2 years younger than me, like my brother) and we wrestled in the shed while my bro and his bro (who was my age) w... Read full Story
LovelyLeo97 2019-06-18 14,429 Stockings Teen (18+) Small Tits Crossdresser Cumshot Outdoor Masturbation Bareback Fetish Blowjob Big Cock Lingerie domination Sex Toys Homemade cum in mouth
77%
Slut indiscretion
At 17, I had reputation among the people in my world. I had sucked more dicks than the average hooker. I had slept with men of every race creed and color. You can even throw in a mentally challenged lad or and autistic child as well. All because I loved getting sex. I think that a penis is the sexi... Read full Story
Regina10 2020-09-16 5,689 Crossdresser Big Tits Cumshot Bareback Blowjob Big Cock Ladyboy Lingerie domination Guy Fucks Shemale Ass to Mouth
90%
Camming Down the Rabbit Hole Ch. 08
A familiar sensation greeted me as my eyes opened and a yawn escaped my mouth, that oh so delicious feeling of my morning wood straining against my silk night ware. It was becoming an ever occurring pattern that no matter how large the orgasm the night before I would wake with the hardest of cocks, ... Read full Story
Dani_does_Dallas 2021-11-15 4,176 Stockings Small Tits Crossdresser Amateur Cumshot Masturbation Fetish Uniform Lingerie Homemade self sucking pov cum in mouth
42%
sexy jane story
I love the idea being a crossdresser wearing women outfit bars in panties n sexy outfit not just for the sex I love sex being on my knees sucking cocks in getting fuck by a big cock see win I was very young I had sex with 3 guys one day they ask me will I suck there cocks in I sand yes we want insid... Read full Story
45sexyjane 2019-05-27 4,461 Small Tits Crossdresser Amateur Big Tits Masturbation Blowjob blonde Big Cock gangbang Lingerie Sex Toys shemale + shemale sexy crossdresser
80%
One night Transtand ;)
One Night Transtand By BalkanMan990 Published on Lush Stories on 05 Oct 2019 I had no idea she was a trans.. I didn't stop kissing or fondling her when I found out. I went out for a drink at one of the many bars at Croatia,where my girlfriend Sabina and I were staying.Sabina and I had been drin... Read full Story
BalkanLoco91Ri 2019-10-24 9,269 Small Tits Amateur Cumshot Masturbation Creampie Shemale Fucks Guy Blowjob blonde Lingerie Guy Fucks Shemale Homemade pov cum in mouth
100%
Camming Down the Rabbit Hole Ch. 07
Opening my eyes I struggled a little as the residual cum on my face from last night’s show hadn’t been fully wiped off, I felt the dry and crusty leftovers crinkle on my skin, but couldn’t help but smile to myself as I remembered how it had got there. The intensity of that orgasm had been on another... Read full Story
Dani_does_Dallas 2021-10-22 6,594 Stockings Small Tits Crossdresser Amateur Cumshot Masturbation Fetish Lingerie Sex Toys Homemade self sucking pov cum in mouth
100%
Sweet Encore
I was alone tonight and feeling just a bit paranoid as I listened to the soft music. The soothing sounds put me in a seductive mood, but It seemed that all my lovers were too busy for me, or they had other plans. Uncle Barney and my detective were probably home being dutiful husbands. Bo was under h... Read full Story
Regina10 2024-05-09 3,627 Crossdresser Big Tits Bareback Creampie Blowjob blonde Big Cock Guy Fucks Shemale big ass Ass to Mouth
50%
Latex succubus
The lights of the city obscured the supposedly brilliant starlight in the night sky, leaving only dim and scattered scattered stars adorning the gloomy night sky half-covered by dark clouds, and the crescent-like crescent moon guarding it in the distance makes the night seem less empty Lonely. Mayb... Read full Story
Alicexiao 2023-01-06 4,717 Crossdresser Cumshot Creampie Fetish domination Guy Fucks Shemale high heel boots
83%
My day after forced feminization - fetish
My typical day starts with getting dressed in one of my favorite outfits. Short minidress, thigh highs, thongs, a corset and 6 inch Stilettos. I started wearing a corset to get my waist tighter and transition too the perfect hourglass figure. After Breakfast typically one of my wife's friends stop... Read full Story
TRTRAIN 2023-04-22 5,278 solo Amateur Masturbation Fetish Ladyboy Lingerie domination Sex Toys Homemade
95%
My best friend turned trans.....so I fucked him - Part 1
Theres a bit of history to this one so strap in! I started hanging out with this group of kids in my area when I was 12 years old, we did all the typical stuff you can imagine young kids getting up to (played football, chased girls etc...) over the years I became really good friends with one of the ... Read full Story
iconicirish 2023-05-11 9,584 Stockings Amateur cock Masturbation sucking Blowjob Big Cock Lingerie Latex transgender sissy
100%
David to Dee
"Dave," she purred, "you know you can tell me anything. Surely you know you can trust me not to judge you by your fantasies." He was squirming under her touch, his eyes tightly shut, trying to avoid telling her his deepest secrets on the one hand, and on the other, hoping beyo... Read full Story
shemale lover 2012-07-29 12,920 Cumshot Masturbation oral sex
45%
Shemale Prostate Orgasmic Bliss!!!!
if she wanted breasts." "Oh no. That's the amazing part. The more I dressed him the more feminine he became. By now I'd moved him her and her clothes into the other bedroom. She wasn't happy with that but we came to an agreement; I'd milk her once a week and she... Read full Story
ProstateMilker 2015-05-01 14,151 Masturbation cum orgasm cumshots prostate
50%
Devastating and dominating
Tracy drove the black SUV with her friend Miss K in the passenger side, both of them struggling not to be bored to sleep with the monotonous countryside I-64, the scenery broken up only by the occasional road sign or truck stop. The Madonna CD thumping in the stereo helped matters though, the t... Read full Story
shemale lover 2012-01-29 5,354 Masturbation sucking Creampie Latex fucking
66%
Discovering Mistress Sarah's World Part 2
Chapter 4 : Introducing Miss May! Miss May's arrival seemed sudden and quick to Joe. He heard the door close downstairs. Then there was the sound of somebody running up the steps. The bedroom door flung open and before Joe could look up to see anything, he heard an excited voice exclaim, "ki... Read full Story
shemale lover 2012-10-03 5,989 cum domination Sex Toys sissy
100%
Camming Down the Rabbit Hole Ch. 09
As per my previous mornings recently, I stirred and rubbed the sleep from my eyes, that delicious feeling of my silk night ware stretching over my taught nipples and my morning wood throbbing in its lace enclosure. The urge to touch myself was palpable, it seemed no matter how hard I came the night ... Read full Story
Dani_does_Dallas 2022-03-22 3,800 Stockings Crossdresser solo Amateur Cumshot Masturbation Lingerie Sex Toys Homemade self sucking pov cum in mouth webcams
0%
Tara's Adventures
Part 1 I had met them on line. Marla 1st then her owner Mistress Olivia. We chatted for well over a year and had met for drinks. They knew of my submissive fem side and we had planned meetings on several occasions but things always developed that upset them. Then a period of time developed whe... Read full Story
shemale lover 2012-08-11 5,485 anal Group Sex oral domination sissy
100%
Camming down the rabbit hole Ch2
How had I ended up in this situation? Sure I was going to need to make ends meet, but I could find a normal job couldn’t I? was I this desperate? Perhaps desperate wasn’t the right word, just over a month ago I had started out camming as a bit of fun, to maybe make a few pounds while I masturbated, ... Read full Story
Dani_does_Dallas 2021-08-11 3,885 Crossdresser solo Amateur Masturbation Lingerie Homemade webcams
100%
Camming down the rabbit hole Ch5
I was jolted out of my sleep by the phone on my bedside table vibrating, bleary eyed I picked it up and saw a message from the couriers that a package would be delivered today around 4pm. The realisation that this was the package I had been waiting for and I could finally wear something else in my s... Read full Story
Dani_does_Dallas 2021-09-29 5,311 Stockings Crossdresser solo Amateur Cumshot Masturbation Lingerie Sex Toys Homemade cum in mouth webcams
100%
Camming down the rabbit hole Ch6
In the morning I decided to give the running a miss and do a long session with the DVD, my legs had become a little sore and tight so some extra stretches and yoga would really help. I once again surprised myself with how much more flexible I had become, the plug still in my ass giving me occasional... Read full Story
Dani_does_Dallas 2021-10-11 5,176 Stockings Crossdresser solo Amateur Cumshot Masturbation Lingerie Sex Toys Homemade pov cum in mouth webcams
100%
Camming Down the Rabbit Hole Ch. 10
As the sun beamed in through a gap in the curtains my now familiar morning wood strained at the silk of my nightwear. How was it that no matter how hard I came the night before it would wake up eager and ready to go. As had become customary my mind would be filled with the events of the previous nig... Read full Story
Dani_does_Dallas 2022-04-12 3,783 Crossdresser solo Amateur Cumshot Masturbation Lingerie Sex Toys Homemade self sucking cum in mouth webcams
50%
DATES NUITS
My wife, Denise, and I have been happily married for over 10 years. Over the years, we have enjoyed a vibrant and adventurous sex life. As we've grown in our marriage, we have become very open and honest about our sexual fantasies and desires. Through the years, we have come to realize that my w... Read full Story
Femboy 2021 2023-02-07 1,656 Stockings Lingerie Shemale and Girl Guy Fucks Shemale Interracial Sex Toys cum in mouth
100%
A Shell of A Man
Six years ago, I was doing well enough to finally afford my dream apartment. It was a studio apartment on the upper side of town. So, I had the job, the apartment, the money... but I was lonely. Very lonely and very horny. Not only would I get all hot and bothered from looking at all of the pretty w... Read full Story
shemale lover 2012-06-11 9,808 Cumshot Fetish sissy
100%
How I Became Vanessa Chapter 1
PART I: I was a man before becoming Vanessa, and my name was Mike. I was heterosexual and I was going out with my first "serious" girl friend for two years when all this started. I was still living with my mother who had been divorced for a decade before getting remarried. Her new husba... Read full Story
shemale lover 2012-10-31 4,013 anal Cumshot Masturbation Sex Toys
85%
BANGING AROUND BANGKOK
BANGING AROUND BANGKOK: THE AMOROUS ADVENTURES OF CAITLIN "MEOW" MORRISON after living and working in Thailand/SE Asia for many years i decided to write an erotic story based on some of the people i have known, venues and places i have been, and the P4P night-scene where i spent way too much... Read full Story
bkkldby 2019-06-17 14,491 first time Teen (18+) Amateur Group Sex Big Tits Cumshot Outdoor Bareback Blowjob Big Cock Asian lesbian public place
100%
From a 50's virgin to a Mature good for all
***Prologue - Confessions: Every day since I offered my virginity, I put myself in the shoes of a woman. The little town where I live forbids me to show myself socially. However I made myself an accomplice, my epilator who receives me after closing. Since my new beginning, male masturbations are not... Read full Story
hippocampus_171 2023-01-11 4,642 Stockings Crossdresser Amateur Group Sex threesome Big Cock domination Mature foursome Homemade cum in mouth shemale + shemale milfs
100%
Birth of a New Sissy Part 3 Completion
I suppose at some level I knew it would happen. Or at least I should have. After nearly a month of servicing Jeff's cock and fucking myself silly on my dildo lover things took a turn. I came home from work a little early on a day Laura was off as well. When I got home she was out, but as soon ... Read full Story
shemale lover 2011-11-17 5,388 cum domination crossdressing
85%
The Gang
I had always thought of myself as female in spite of the fact that I was born with male genitlia. Even in my earliest memories where I had witness sex, I identified with the female in the relationship. As a small young child, I had always longed for womanhood each time I heard a woman sing or especi... Read full Story
Regina10 2020-06-29 9,200 Group Sex Cumshot Blowjob Big Cock Ebony gangbang double anal
100%
Aunt Susie's Training Part 6
It was now 5 weeks since my cock enlargement surgery and Aunt Susie had been a dear helping me recuperate. We didn't engage in any sexual activity for fear that I would get hard and slow down recuperation. We would still sleep together and spoon at night while we slept as my new 40DD tits were n... Read full Story
BITCHGURLvr 2024-06-25 5,018 cock sissy Cigarettes
65%
Marcia Goes Back to School
Marcia was painfully nervous. She hadn't been able to eat very much in days. The upside was she was even skinnier which would make Mistress and her husband very happy. She'd always been thin and on the diet Mistress Carol had her on she was already thinner than she dreamed possible. Her anxious stom... Read full Story
shemale lover 2012-12-19 10,868 Masturbation Blowjob blonde ass fucking big boobs
69%
Motel Blackout
I always enjoy my sales trips. The trips fit into my crossdressing lifestyle and the thrill of being in a different town and different people. After a long day on the road, I had just checked into a motel just about 30-miles outside of Nashville, TN. For my overnight trips, I always bring my spe... Read full Story
browncherrygurl 2017-05-25 18,425 anal Crossdresser ass fucking sissy forced
60%
Aunt Cindy's Bizarre World
My name was Jim Rogers Jr. at one time. I was born and raised in a small town in a rural county in Oklahoma. My father James had been the pastor of the local Pentecostal Assembly of Jesus. Dad was what was known an ultra conservative hell fire and brimstone preacher. My mother's name was Allison. Sh... Read full Story
shemale lover 2011-12-02 10,407 taboo Fetish crossdressing sentimental erotic
100%
Daddies New Girlfriend
Doug suspected his 19 year-old son Jerry was stealing money. Doug worked far too much trying to provide for his son to supervise him properly but drew the line at theft. So he decided to set up a web-cam behind the mirror in his bedroom, he'd used the very same 2 way mirror to film his dead wife Cyn... Read full Story
shemale lover 2012-03-09 12,483 sucking Fetish crossdressing
100%
Womanhood for Jenny
The muted alarm-clock brought jenny awake instantly. She reached over to shut it off. Being ever so careful not to disturb Master, she slipped out of bed and gazed lovingly at the sleeping man. From their earliest intimacy, He had accepted her completely as a woman, His woman, not a trans-gendered m... Read full Story
shemale lover 2012-10-07 6,114 hardcore Sex Toys tg
50%
A Perfect Life
The reasons I am not writing this myself. I have finally convinced someone to do it for me. She promised to post it on the Internet, but only as fiction. I suppose it is a bit unbelievable. It all started with the best of intentions. I had married my love while we were still in college. She... Read full Story
shemale lover 2012-05-05 12,908 transgender
100%
Anastasia's Life So Far
Chapter 1: Humbling Beginnings My story starts where most every crossdresser's story starts. It starts somewhere around the time I was an infant. I can remember not to mention being told several thousand times that my choice of toys as a child was dolls, strollers, dress up and tea parties, Barbi... Read full Story
shemale lover 2012-11-27 11,258 Fetish crossdressing feminization
60%
The Creators: Book One by
Chapter One: The Life Giver BRANDON My twin sister is dead, but she’s not gone. Death is a tragedy in the remote village of Towerhead, but it’s not a rarity. Farming accidents, disease, famine, natural disasters, you name it, it kills people in Towerhead. So, six years ago, when the oxen-pul... Read full Story
sagga 2018-09-18 30,668 Teen (18+)
100%
Anastasia's Life
Chapter 1: Humbling Beginnings My story starts where most every crossdresser's story starts. It starts somewhere around the time I was an infant. I can remember, not to mention being told several thousand times that my choice of toys as a child was dolls, strollers, dress up and tea parties, Barb... Read full Story
shemale lover 2012-11-26 7,481 Fetish cock sucking crossdressing
96%
Family Frolic
FRIDAY My sister and her husband wanted to take a few weeks off in the sun and asked me to look after their kids for a while. I'd move out of my tiny apartment and into their house for the duration. As I was still living off my severance and they had a nice spread with an indoor pool and a h... Read full Story
shemale lover 2012-01-14 31,416 strapon porn
100%
Discovering Mistress Sarah's World
Chapter 1: Meeting Mistress Sarah Joe's heart pounded fiercely as he stood at the door to his Mistress's house. He did not expect to be so nervous at his first meeting with her. After all he had known her for over a year. Mistress Sarah had been gracious enough to allow him into her world. He was... Read full Story
shemale lover 2012-10-01 6,099 Fetish domination cum swallowing feminization