sexstories.com
Less Read Sex Stories
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Family Research Project by bareashback
«After a daughter brings up the idea of incest to her family, they decide to look into it getting an outside perspective.»
Rated 92.8%, Read 38190 times, Posted Wed 26th of December 2018
Diary , Bi-sexual, Blowjob, Cum Swallowing, Exhibitionism, Incest, Threesome, Voyeurism, Written by women -
Ghostly: The first by StoryFox
Rated 95.9%, Read 38190 times, Posted Sat 1st of September 2012
Science-Fiction , First Time, Hardcore, Non-Erotic, Teen, Teen Male/Teen Female, Young -
Fantasy Realized by Fantasypixiesub
«She finally gets to experience what she has fantasized about most of her life. Will she regret it»
Rated 88.2%, Read 38196 times, Posted Wed 29th of June 2016
Fantasm , BDSM, Bestiality, Extreme, Humiliation -
The Bradford Family Saga Part 2 by jgepowers
Rated 95%, Read 38199 times, Posted Fri 26th of April 2013
Fiction -
The Death of Sandra with the big nipple brassiere by crustybunger
Rated 51.8%, Read 38202 times, Posted Sun 21st of October 2007
Essay , Group Sex, Necrophilia, Romance -
The VIP Lounge. by Doc88102
«Two party girls discover that their favourite club has a VIP lounge, and it turns out that they've got what it takes to gain access.»
Rated 95.6%, Read 38202 times, Posted Wed 29th of May 2019
Fiction , Bi-sexual, Group Sex, Males / Females -
Aid In Africa : Part three : Mandy by Pandorius999
Rated 81.6%, Read 38202 times, Posted Sat 2nd of June 2012
Fantasm , Coercion, Discipline, Girls / Female, Humiliation, Lesbian, Male / Females, Male Domination, Non-consensual sex, Rape, Slavery, Torture -
The Brain Bug's Correct Feast by SmellyPrince
Rated 41.9%, Read 38205 times, Posted Sun 1st of January 2012
Fantasm , Alien, Anal, Death, Domination/submission, Enema, Mind Control, Rape, Snuff, Young -
A Family Betrayal Chapter 20 by Hawkrider
Rated 91.4%, Read 38205 times, Posted Tue 12th of May 2015
Fiction , Asian, Black, Interracial, Male / Females, Non-Erotic, Romance, Violence -
The Creators: Book Two, Chapter 6 by White Walls
«The final chapter of the second book.»
Rated 92.2%, Read 38205 times, Posted Tue 13th of November 2018
Fiction , Death, Erotica, Teen -
HOUSE...DE.. LA.. SEX...(HOUSE OF SEX) Publisha publications by publisher
Rated 32%, Read 38206 times, Posted Fri 20th of July 2007
Fantasm , Anal, Blowjob, Cum Swallowing, Incest, Masturbation, Oral Sex -
Jen's Wild Night Out by crustybunger
Rated 51.3%, Read 38207 times, Posted Tue 31st of July 2007
True Story , Alien, Blowjob, Consensual Sex, Oral Sex, Romance -
Owning Amaryllis part 4 by petitefleur
«The mailman comes for the last time»
Rated 84.2%, Read 38208 times, Posted Fri 30th of August 2024
Fiction , Asian, Coercion, Humiliation, Male Domination, Male Solo, Male/Female, Non-consensual sex, Reluctance, Violence, Written by women -
An X-Men Party by YngHoneyCandy
Rated 86.4%, Read 38208 times, Posted Wed 11th of August 2010
Fiction , Blowjob, Consensual Sex, Erotica, Female solo, First Time, Interracial, Male/Teen Female, Masturbation, Mind Control, Oral Sex, School, Teen Male/Teen Female, Voyeurism -
Chelsea's Persuasion [3] by hanes_el
Rated 79.9%, Read 38211 times, Posted Wed 4th of July 2007
Fiction , Incest, Male/Teen Female, Young -
Her Name is Mia by Fantasylit24
Rated 93.5%, Read 38214 times, Posted Sun 15th of September 2013
Fiction , Blowjob, Consensual Sex, Erotica, Male/Female, Romance, School, Teen -
our neighbour joins us for fun by cumsluts
«we all end up fucked raw,»
Rated 81.4%, Read 38217 times, Posted Thu 21st of July 2016
Diary , Anal, Ass to mouth, Ass to pussy, Bestiality, Bi-sexual, Group Sex, Water Sports/Pissing -
Eternal Darkness: Chapter Two by OnceForgotten
«Back in the land of mystery and magic.»
Rated 95.2%, Read 38220 times, Posted Thu 3rd of March 2016
Fantasm -
Under his desk (Ch 2) by Fapworthy Diction
«The first-hand account of a young asian PA who takes matters into her own mouth with her boss and gets more than she bargained for»
Rated 89.9%, Read 38223 times, Posted Wed 13th of January 2016
Fantasm , Asian, Blowjob, Coercion, Domination/submission, Humiliation, Interracial, Job/Place-of-work, Slavery -
Carry On My Wayward Son by Jax_Teller
«Life goes on after becoming a widower»
Rated 87.5%, Read 38226 times, Posted Tue 24th of January 2017
Fiction , Ass to mouth, Authoritarian, Blowjob, Cum Swallowing, Exhibitionism, Pegging, Threesome, Voyeurism -
Dead Stick 2 by pars001
«Tyrome's new job begins»
Rated 95%, Read 38226 times, Posted Thu 1st of October 2015
Science-Fiction , Consensual Sex, Older Male / Female, Violence -
The Life and Times of an Expatriate, Chap. 6-7 by ombligo
Rated 92.3%, Read 38226 times, Posted Tue 1st of June 2010
Fiction , Anal, Consensual Sex, Female / Girl, Female solo, Incest, Latina, Male Solo, Male/Teen Female, Masturbation, Oral Sex, Romance, Threesome, Young -
Micheal spends the night by KaitEllie
Rated 87.5%, Read 38229 times, Posted Wed 8th of April 2015
Fiction , Cheating, Consensual Sex, Male Domination, Male/Teen Female, Written by women, Young -
Old Friend_(7) by whome?why?
«Cassie & Eva have more in common than they realize»
Rated 93.6%, Read 38229 times, Posted Tue 17th of May 2016
Fiction , Consensual Sex, Domination/submission, Lesbian, Written by women -
Laura's Dream_(0) by JDecker
«Laura just wants to feel once how it feels when dad shoots into her mouth.»
Rated 93.3%, Read 38229 times, Posted Mon 27th of August 2018
Fiction , Cum Swallowing, Incest, Male/Teen Female, Oral Sex -
An Evening of Firsts_(0) by SouthernRoam
Rated 87%, Read 38232 times, Posted Mon 29th of July 2013
Fantasy , Anal, Authoritarian, BDSM, Blowjob, Bondage and restriction, Cum Swallowing, Erotica, Female Domination, Hardcore, Male / Females, Masturbation, Oral Sex, Pegging, Toys -
Blackmailed by Sister In Law by ClydeCarbon
Rated 81.4%, Read 38232 times, Posted Sun 5th of October 2014
Fiction , BDSM, Bi-sexual, Blackmail, Coercion, Cruelty, Male Domination, Male/Female, Transsexual -
Late Evenings Pt. 1 by StAugustus
Rated 92.4%, Read 38235 times, Posted Wed 30th of January 2013
Fiction , Male / Females, Threesome, Voyeurism, Wife -
Blow Pop Sex Secrets by sensualerotica1
Rated 51.2%, Read 38237 times, Posted Sun 12th of December 2004
Fiction , Blowjob, Cum Swallowing, Domination/submission, Exhibitionism, Hardcore, Mind Control -
twin sisters together forever by xelksel
Rated 66.3%, Read 38240 times, Posted Sun 24th of September 2006
Fantasm , Bi-sexual, Blowjob, Cum Swallowing, Female/Female, Incest, Lesbian -
The Ring Ch. 02 by DesTodes777
«Keith uses the Ring heartily»
Rated 92.4%, Read 38241 times, Posted Tue 11th of February 2020
Fiction , Consensual Sex, Horror, Incest -
Learning the lifestyle,( a small add-in part.) by Mystress_Carlie
Rated 68.1%, Read 38241 times, Posted Fri 20th of August 2004
Fiction , BDSM, Discipline, Domination/submission, Erotica, Romance, Threesome -
Last One at the Party_(0) by Little Sadei
«Alex is a left alone at a party where four guys take the moment to have fun with her. Although their idea of fun is to brutally rape her.»
Rated 81.6%, Read 38241 times, Posted Mon 13th of May 2019
Diary , Cum Swallowing, Domination/submission, Extreme, First Time, Group Sex, Humiliation, Interracial, Males / Female, Rape, Violence -
Neighbours Part 5 by chinookwind
Rated 93.2%, Read 38244 times, Posted Wed 5th of December 2012
Fiction , Blowjob, Drug, Masturbation, Reluctance, Transgendered, Virginity -
Crush 2 by Him
Rated 82.2%, Read 38246 times, Posted Wed 23rd of August 2006
Fiction , Gay, Romance, School, Teen Male / Teen Male -
Empire Prologue and Chapter 1 revision. by kyron120867
«One man can make a difference»
Rated 93.7%, Read 38247 times, Posted Wed 9th of September 2015
Science-Fiction , Non-Erotic -
Christina by Gail Holmes
Rated 76%, Read 38247 times, Posted Sat 6th of November 2004
Fiction , Erotica, Male Domination, Mature, Non-consensual sex -
Work Fun by Lesser Imp
Rated 72.7%, Read 38249 times, Posted Wed 4th of August 2004
Fiction , Anal, Coercion, Job/Place-of-work, Male Male/Teen Female, Masturbation, Oral Sex -
Fun with sister-in-law by m88
«Nora, 26, gets hot and heavy.»
Rated 80.4%, Read 38250 times, Posted Tue 22nd of October 2024
Fiction , Consensual Sex, Male/Female, Threesome, Young -
SOVEREIGNTY 6 by pars001
«His life was crap, nothing ever seemed to go his way. His wife had kicked him out he was at the end of his rope, then one day he had a strange dream, or was it?»
Rated 95%, Read 38250 times, Posted Wed 18th of November 2015
Science-Fiction , Alien, Body modification, Cruelty, Violence -
Noc 7.5 by el_hanes
Rated 83.5%, Read 38252 times, Posted Wed 13th of June 2007
Fiction , Incest, Teen Male/Teen Female, Young -
Maryanne’s Story – Secret Kisses by bushpilot123
Rated 92.3%, Read 38253 times, Posted Mon 18th of April 2011
True Story , Female/Female, Lesbian, Threesome, Wife, Written by women -
The Futa Fairy - Futa MILF's Harem Wish Chapter 3: Mrs. Fatima's Fertile Harem by mypenname3000
«The futa Mrs. Fatima claims her daughters and her husband's second wife as her own!»
Rated 85.4%, Read 38256 times, Posted Tue 1st of August 2017
Fiction , Anal, Ass to mouth, Blowjob, Cheating, Cuckold, Cum Swallowing, Female exhibitionist, Female/Female, First Time, Incest, Lesbian, Oral Sex, Threesome, Transgendered, Virginity -
sister who is my dirty girl chapter 2 by kenny8299
Rated 44.4%, Read 38256 times, Posted Wed 2nd of September 2009
Fantasy , Enema, Male / Females, Scatology, Spanking, Water Sports/Pissing -
Lady Abused by willie
Rated 48%, Read 38256 times, Posted Tue 11th of January 2005
Fantasy , Blowjob, Bondage and restriction, Rape -
First Experience With Analingous by BadInAGoodWay
Rated 85.4%, Read 38259 times, Posted Tue 30th of August 2011
True Story , Anal, Asian, Blowjob, Consensual Sex, First Time, Interracial, Male/Female, Oral Sex, Young -
House Slut 25 - Little Talks by phenylalanine
«The continuing free use travails of Tegan»
Rated 90.9%, Read 38265 times, Posted Fri 28th of June 2019
Fantasy , Anal, Male/Female, Non-consensual sex, Rape -
hangover blowjob by 420kid
Rated 33.3%, Read 38265 times, Posted Sun 4th of March 2012
True Story -
A SOPHISTOCATED AND VERSATILE LADY by meforyou
Rated 93.1%, Read 38268 times, Posted Wed 4th of April 2012
Fiction , Bi-sexual, Blowjob, Consensual Sex, Cum Swallowing, Erotica, Female/Female, Lesbian, Male/Female, Oral Sex, Romance, Toys -
The Sisters Share by urguy
Rated 77.2%, Read 38271 times, Posted Wed 29th of April 2009
Fiction , Incest, Male / Females, Threesome -
Wet Relations by ASIANDREAM
«An Asian boy's initiation in bisexual incest and watersports»
Rated 92.3%, Read 38274 times, Posted Sat 5th of March 2016
Fantasy , Asian, Bi-sexual, Group Sex, Incest, Water Sports/Pissing -
Whoa! Susan Gets More Than She Wanted VIII by Lucky Mann
«Jason continues to add to his harem.»
Rated 92.4%, Read 38274 times, Posted Mon 14th of December 2015
Science-Fiction , Blowjob, Cum Swallowing, Female/Female, Group Sex, Male / Females, Mind Control, Oral Sex, Virginity -
Devil's Island CH 5 by snuskhummer11
«This is a long story. The story follows several women from their abduction to their new lives as slaves and beyond.»
Rated 91.9%, Read 38274 times, Posted Fri 27th of July 2018
Fantasy , BDSM, Bestiality, Body modification, Bondage and restriction, Cruelty, Extreme -
The Loanshark by Haywood72
«The Loanshark»
Rated 90.2%, Read 38277 times, Posted Mon 3rd of February 2020
True Story , Bi-sexual, Blowjob, Cuckold, Cum Swallowing, Wife -
Wartime Comfort House Diary - Day 3 House Keeper by rojac29
«A wartime General found his comfort in a local beauty, converted and trained by his Japanese lover in occupied land. My 32 years old Japanese Chief Comfort House Keeper Miss Yuko Yamaha had her turn today.»
Rated 92.5%, Read 38277 times, Posted Sun 20th of June 2021
Fiction , Asian, Blowjob, Consensual Sex, Domination/submission, Erotica, Foot or shoe fetish, Male Domination, Male/Female, massage, Mind Control, Oral Sex, Romance, Young -
SOVEREIGNTY 5_(0) by pars001
«Alan's life was crap his wife was gone, he was alone then a dream that seemed real changed that»
Rated 94.2%, Read 38277 times, Posted Wed 4th of November 2015
Science-Fiction , Alien, Body modification, Cruelty, Mind Control, Slavery, Violence -
The Fate of a Kingdom; Chapter 2 by AvengerKnight
«A young warrior must rise to save his home and kingdom»
Rated 96.7%, Read 38277 times, Posted Thu 16th of July 2020
Fantasy , Erotica, First Time, Male/Female -
NEVER A TEACHER by blueheatt
Rated 88.9%, Read 38280 times, Posted Tue 6th of January 2015
Fiction , Blowjob, Boy, Consensual Sex, Older Female / Males -
A day to remember_(2) by Kitty_Labella
Rated 79.6%, Read 38282 times, Posted Mon 23rd of April 2007
Fiction , Interracial, Romance, Teen Male/Teen Female, Virginity -
Nice Rack by fbailey
Rated 87.4%, Read 38284 times, Posted Mon 26th of November 2007
Fiction , Blowjob, Consensual Sex, Male/Female, Romance -
Chapter 7. My wife gets a new friend. by Deadeye_76
Rated 92.3%, Read 38286 times, Posted Mon 6th of April 2009
Fantasy , Male/Female, Non-consensual sex -
DOM SIR part 2_(1) by anonymous
Rated 46.7%, Read 38287 times, Posted Fri 30th of January 2004
Fiction , BDSM, Domination/submission, Humiliation -
A surprise for My Wife by Unknown user
Rated 83%, Read 38289 times, Posted Wed 16th of March 2011
True Story , Erotica, Exhibitionism, Female exhibitionist, Humiliation, Male Domination, Reluctance, Romance, Voyeurism, Wife -
Enema and anal play loving g/f... by hairyliker
Rated 82.7%, Read 38289 times, Posted Thu 21st of March 2013
True Story , Anal, Domination/submission, Fisting, Scatology -
Cableguy Adventures by cartman
Rated 83.7%, Read 38292 times, Posted Sun 15th of October 2006
Fantasy , Blowjob, Consensual Sex, Job/Place-of-work, Male / Older Female, Mature -
Male Housekeeper by Jim2066
«Broke college kid makes money and explores bisexuality.»
Rated 80.8%, Read 38292 times, Posted Sat 19th of October 2024
True Story , Anal, Bi-sexual, Gay -
Brotherly Love: Big Brother Likes It In The Ass by Blackdawn
Rated 87.9%, Read 38292 times, Posted Fri 23rd of July 2010
Fantasy , Anal, Blowjob, Cum Swallowing, Gay, Incest, Job/Place-of-work -
Dirty Little Love Secret_(1) by Ashton_Cole
Rated 94%, Read 38292 times, Posted Wed 9th of December 2009
Fiction , Lesbian, Romance, Teen Female/Teen Female, Written by women -
Toby and me by greenhornet144
Rated 75.7%, Read 38292 times, Posted Thu 13th of August 2009
True Story , Anal, Boy / Boy, Cum Swallowing, Gay, Oral Sex, Teen Male / Teen Male -
Summer_(0) by hulk21
Rated 78.2%, Read 38295 times, Posted Sun 7th of April 2013
Fiction , Anal, Consensual Sex, Humiliation, Incest, Teen Male/Teen Female, Voyeurism, Young -
When I Became A Woman -- Chap. Two by madhatter62
Rated 92.3%, Read 38295 times, Posted Fri 10th of July 2009
Fiction , Incest -
Love is Deaf? Part 2 by truebutchanged
Rated 90.5%, Read 38295 times, Posted Sun 26th of August 2012
True Story , Anal, Blowjob, Cheating, Coercion, Consensual Sex, Female solo, Masturbation, Oral Sex, Romance, Teen, Teen Female Solo, Teen Male/Teen Female, Virginity, Voyeurism -
Naruto- KoRn Koncert In Konoha: Part 6 by The Perverted Mind
Rated 74.4%, Read 38298 times, Posted Thu 15th of July 2010
Fiction , Anal, Asian, BDSM, Bi-sexual, Blowjob, Body modification, Bondage and restriction, Consensual Sex, Cum Swallowing, Discipline, Domination/submission, Erotica, Female Domination, Hardcore, Lactation, Oral Sex, Pregnant, Romance, Teen, Teen Male / Female, Teen Male/Teen Female, Threesome, Torture, Virginity, Wife, Young -
Matt - My Fantasy Boy Part 2 by AlexMatthews
«Alex and Matt get closer than ever.»
Rated 91.5%, Read 38298 times, Posted Wed 4th of July 2012
Fantasy , Boy / Boy, Gay, Teen Male / Teen Male, Young -
first mature by tfj
Rated 91.2%, Read 38301 times, Posted Tue 20th of November 2012
True Story -
A Night In White Satin by A.j
Rated 78.3%, Read 38301 times, Posted Thu 17th of November 2005
True Story , Erotica, Job/Place-of-work, Male/Female -
The Wrong Bar_(1) by tyreen
Rated 83.5%, Read 38304 times, Posted Wed 5th of October 2011
Fiction , BDSM, Cum Swallowing, Extreme, Group Sex, Rape, Violence -
Miss Addiscombe's Virtue by abroadsword
Rated 93.1%, Read 38304 times, Posted Mon 8th of August 2011
Fiction , First Time, Non-consensual sex, Reluctance -
The Father In Law Part 2 by twizted771
Rated 89%, Read 38304 times, Posted Mon 15th of June 2009
True Story , Anal, Ass to mouth, Cum Swallowing, Gay -
Terry's Party Trick by pa319
Rated 80%, Read 38304 times, Posted Mon 11th of June 2012
True Story , Drug, Male/Female, Non-consensual sex, Rape, Reluctance -
Two Hours by Suziesue
«I lost a bet and had to pay the penalty»
Rated 71.4%, Read 38307 times, Posted Sat 1st of July 2023
True Story , BDSM, Domination/submission, Extreme, Wife -
At the baths by Ovid
Rated 82.5%, Read 38307 times, Posted Sun 28th of March 2010
Fantasy , Authoritarian, Blowjob, Male Domination, Slavery, Teen, Threesome, Young -
Conquest of Elysium Chapter 04 by Hellcat41979
«Another Goddesses finds her self enslaved by the forces of the God Apollon.»
Rated 90.2%, Read 38310 times, Posted Fri 11th of January 2019
Fantasy , BDSM, Bestiality, Body modification, Bondage and restriction, Cum Swallowing, Discipline, Domination/submission, Exhibitionism, Extreme, Female exhibitionist, Group Sex, Humiliation, Incest, Male Domination, Rape, Slavery, Torture -
Shipwrecked 4 by Loggerhead
Rated 94.2%, Read 38316 times, Posted Wed 17th of April 2013
Fiction , Consensual Sex, Oral Sex, Threesome, Voyeurism -
The Slut\'s Diary - Part 1 by TheStoryTeller2
Rated 90.9%, Read 38316 times, Posted Fri 5th of November 2010
Fiction , Blackmail, Blowjob, Humiliation, Male/Teen Female, Young -
Aunt Bella Can't Say No! Pt. 02 by anahanz
«Aunt Bella goes to the pool with her nephew.»
Rated 73.3%, Read 38322 times, Posted Tue 16th of April 2024
Fantasy , Humiliation, Incest, Written by women -
Harry Potter and the Sisters Black 6(full chapter) by lordvader169
Rated 91.8%, Read 38322 times, Posted Sat 14th of June 2008
Fantasy , Cum Swallowing, Fan fiction, Group Sex, Mind Control -
Sadistic Beth by FK_1
Rated 40%, Read 38323 times, Posted Fri 21st of May 2004
Fiction , BDSM, Sado-Masochism -
my little brother_(0) by newkid12321
Rated 68.5%, Read 38325 times, Posted Tue 24th of September 2013
True Story -
The Swap - Chapter One by darkride
«Chris and Emily, 20-somethings looking to spark their sex lives, meet Erik and Scarlet, who have a deep dark secret...»
Rated 72.6%, Read 38325 times, Posted Sat 19th of June 2021
Fantasy , Bestiality, Blowjob, Body modification, Bondage and restriction, Domination/submission, Mind Control, Wife -
My first Time_(81) by Soulstorys
Rated 75.3%, Read 38328 times, Posted Wed 7th of March 2012
True Story , Gay, Masturbation, Non-consensual sex, Transvestite, Young -
Melissa and the Intern by WhyBnormal
«A young intern who already fucked his wife behind his back spends the night. What could go wrong in this situation?»
Rated 92%, Read 38328 times, Posted Sat 19th of September 2020
Fiction , Cheating, Cuckold, Job/Place-of-work, Male / Older Female, Older Female / Males, Wife -
Four days of Heaven! by darkestprince
Rated 71.7%, Read 38329 times, Posted Mon 10th of July 2006
Fiction , Asian, Authoritarian, Coercion, Cum Swallowing, Domination/submission, Oral Sex -
A fericous girl by john_7
Rated 69%, Read 38330 times, Posted Sun 6th of March 2005
Fiction , Anal, Boys/Teen Female, Consensual Sex, Oral Sex -
Ned Flanders surprised visitor Part 1 by crackmonkey
Rated 86.3%, Read 38331 times, Posted Tue 21st of April 2009
Fiction -
Daisy punana ch 6 by AsDiane
Rated 56.3%, Read 38331 times, Posted Thu 29th of March 2012
Fiction , Bestiality, Body modification, Bondage and restriction, Extreme, Humiliation, Lactation, Sado-Masochism, Slavery -
Brother's Incestous Bet Chapter 8: Little Sister's Horny Passion by mypenname3000
«A little sister's horny passions explode out of her!»
Rated 91.4%, Read 38331 times, Posted Sun 18th of November 2018
Fiction , Anal, Black, Domination/submission, Exhibitionism, Female exhibitionist, Female/Female, Humiliation, Incest, Interracial, Lesbian, Male / Females, Male/Female, Oral Sex, Voyeurism -
Surfside chapter six by Keith
Rated 78.9%, Read 38331 times, Posted Sat 30th of October 2004
Fiction , Hardcore, Incest, Male / Older Female, Oral Sex -
The Chauffeur (#51) Michael by PABLO DIABLO
«David's son Michael shows up during the NYE party.»
Rated 95.7%, Read 38334 times, Posted Mon 10th of June 2019
Fiction , Consensual Sex, Domination/submission, Group Sex, Job/Place-of-work, Male / Females, Male/Female, Oral Sex, Romance -
The Harem of the Emperor - Part 2 by Mesues
Rated 88%, Read 38334 times, Posted Sun 25th of August 2013
Fantasm , Authoritarian, Domination/submission, Male/Female, Male/Teen Female, Snuff