# Did you ever have sex with a sibling? **URL:** \ **Category:** In My Humble Opinion\ **Created:** [November 24, 2003, 2:10am UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920 "2003-11-24T02:10:01Z")\ **Posts on this page:** 20\ **Page:** 4
**Author:** ![Green\_Cymbeline](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/green_cymbeline/32/9244_2.png) [@Green\_Cymbeline](https://boards.straightdope.com/u/Green_Cymbeline)\ **Post date:** [November 25, 2003, 10:15pm UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920/61 "2003-11-25T22:15:55Z")
> [@](#): > > \*Originally posted by Guinastasia \* > \*\*What, no mention of V. C. Andrews? \*\* When I was a teenager, I read all of her books. I loved them. In Flowers in the Attic, she manged to make incest sound very…exciting. Then when I saw the movie, the guy who played the brother was so hot that I thought the sister was lucky to be getting it on with him. But who knows? You take two siblings who are in their teens, lock them in an attic for a very long time, and you may not be surprised if stuff happens. But here is the question. If you and your brother or sister were adopted, and years later you met and fell in love with someone, and only later did you discover that this person was really your sibling, what would you do? Would you end the relationship? I don’t think in this circumstance it would be necessary. ---
**Author:** ![Chefguy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chefguy/32/138_2.png) [@Chefguy](https://boards.straightdope.com/u/Chefguy)\ **Post date:** [November 25, 2003, 10:25pm UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920/62 "2003-11-25T22:25:09Z")
Reminds me of the joke: Q: What’s the definition of ‘relative humidity’? A: The moisture that forms on your balls when you’re screwing your sister. Sorry. ---
**Author:** ![Doomtrain](https://avatars.discourse-cdn.com/v4/letter/d/0ea827/32.png) [@Doomtrain](https://boards.straightdope.com/u/Doomtrain)\ **Post date:** [November 25, 2003, 10:27pm UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920/63 "2003-11-25T22:27:49Z")
> [@](#): > > \*Originally posted by nyctea scandiaca \* > \*\*Does anyone even know _why_ people make incest jokes about West Virginia? \*\* Because it’s less of a challenge than Kentucky? ---
**Author:** ![Green\_Cymbeline](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/green_cymbeline/32/9244_2.png) [@Green\_Cymbeline](https://boards.straightdope.com/u/Green_Cymbeline)\ **Post date:** [November 25, 2003, 10:35pm UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920/64 "2003-11-25T22:35:17Z")
> [@](#): > > \*Originally posted by GMRyujin \* > \*\*Because it’s less of a challenge than Kentucky? \*\* Very funny. But seriously, as best as I could ascertain, the reason West Virginia has that sterotype attached to it is because long ago, WV was very isolated and rural, and is very mountainous, with lots of narrow valleys or “hollows.” These geographic features would create pockets that would severely isolate people for generations. So I suppose that led to some sort of incest on occassion. Anyone else know anything about this? ---
**Author:** ![Green\_Cymbeline](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/green_cymbeline/32/9244_2.png) [@Green\_Cymbeline](https://boards.straightdope.com/u/Green_Cymbeline)\ **Post date:** [November 25, 2003, 10:48pm UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920/65 "2003-11-25T22:48:01Z")
Hmmm I have done some online research on the West Virginia thing but could not find anything. But it has made me think, marrying your first cousin was very common not 100 years ago. Anytime you ever read a novel written more than 100 years ago, or see a Jane Austen movie or anything from that era, there’s tons of first cousin marriages going on. And it’s also very common amongst the royals of Europe. What was it OK a couple of hundred years ago, but not now? ---
**Author:** ![Cervaise](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/cervaise/32/16693_2.png) [@Cervaise](https://boards.straightdope.com/u/Cervaise)\ **Post date:** [November 25, 2003, 11:10pm UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920/66 "2003-11-25T23:10:39Z")
Haven’t had sex with a sibling, but I once watched my sister bang a wildebeest with a strapon. Guess it doesn’t count. \*I have no sister. \*\*It was one of my four stepsisters. \*\*\*Not really. \*\*\*\*I just wanted to say “bang a wildebeest with a strapon.” Please move along now. ---
**Author:** ![Captain\_Carrot](https://avatars.discourse-cdn.com/v4/letter/c/f0a364/32.png) [@Captain\_Carrot](https://boards.straightdope.com/u/Captain_Carrot)\ **Post date:** [November 26, 2003, 12:21am UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920/67 "2003-11-26T00:21:09Z")
Holy crap, that was hilarious! That said, it seems that one or two people are advancing the viewpoint that as long as both people are consenting adults…, most people are hung up on the “EEEEWWW” reaction, which is understandable, and everyone else is engaging in conversation. ---
**Author:** ![Guinastasia](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/guinastasia/32/5751_2.png) [@Guinastasia](https://boards.straightdope.com/u/Guinastasia)\ **Post date:** [November 26, 2003, 2:38am UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920/68 "2003-11-26T02:38:58Z")
> [@](#): > > \*Originally posted by jesleigh \* > \*\*If you go to [www.dailyconfession.com](http://www.dailyconfession.com) , you’ll find coutless incest confessions…It really kinda sick. They have “incest” warnings beside them \*\* I have to believe that at least SOME of those confessions are fake. Some of them are just too outrageous and sound like someone goofing on others. ---
**Author:** ![John\_Carter\_of\_Mars](https://avatars.discourse-cdn.com/v4/letter/j/2bfe46/32.png) [@John\_Carter\_of\_Mars](https://boards.straightdope.com/u/John_Carter_of_Mars)\ **Post date:** [November 26, 2003, 3:00am UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920/69 "2003-11-26T03:00:40Z")
> [@](#): > > \*Originally posted by nyctea scandiaca \* > \*\* \But here is the question. If you and your brother or sister were adopted, and years later you met and fell in love with someone, and only later did you discover that this person was really your sibling, what would you do? Would you end the relationship? I don’t think in this circumstance it would be necessary. \*\* Check out the excellent movie [Lone Star](http://www.imdb.com/title/tt0116905/). You won’t be disappointed, I promise. ---
**Author:** ![Cervaise](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/cervaise/32/16693_2.png) [@Cervaise](https://boards.straightdope.com/u/Cervaise)\ **Post date:** [November 26, 2003, 3:50am UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920/70 "2003-11-26T03:50:31Z")
> [@](#): > > \*Originally posted by Guinastasia \* > **I have to believe that at least SOME of those confessions are fake.** “Dear [Dailyconfession.com](http://Dailyconfession.com), you won’t _believe_ what happened to me at my last family reunion…” ---
**Author:** ![ccwaterback](https://avatars.discourse-cdn.com/v4/letter/c/df705f/32.png) [@ccwaterback](https://boards.straightdope.com/u/ccwaterback)\ **Post date:** [November 26, 2003, 5:04am UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920/71 "2003-11-26T05:04:26Z")
I can’t remember where I saw this, but it was in a movie or a TV comedy. This guy introduces his girlfriend as follows: “I’d like you to meet my girlfriend, she’s my sister, my mother, and my lover”. ---
**Author:** ![robby](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/robby/32/11048_2.png) [@robby](https://boards.straightdope.com/u/robby)\ **Post date:** [November 28, 2003, 2:12am UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920/72 "2003-11-28T02:12:52Z")
Quote from Cletus the Slack-Jawed Yokel (or one of his relatives): “I don’t care if we are divorced; you’re still my sister!” ---
**Author:** ![Live\_Better\_Electrically](https://avatars.discourse-cdn.com/v4/letter/l/46a35a/32.png) [@Live\_Better\_Electrically](https://boards.straightdope.com/u/Live_Better_Electrically)\ **Post date:** [November 28, 2003, 3:53am UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920/73 "2003-11-28T03:53:28Z")
In one of Xaviera Hollander’s books about her years as a prostitute, she described a pair of twin brothers who liked to double-team her. In her opinion there was an incestuous impulse behind their behavior that she also saw in fathers and sons who shared the same hooker (at different times, that is). ---
**Author:** ![Guinastasia](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/guinastasia/32/5751_2.png) [@Guinastasia](https://boards.straightdope.com/u/Guinastasia)\ **Post date:** [November 28, 2003, 3:56am UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920/74 "2003-11-28T03:56:27Z")
“She’s my sister, she’s my daughter! She’s my daughter! She’s my sister!” Another Cletus and Brandine quote: Brandine: Why do we have to sit so close to yous parents? Cletus: WEll, they’s my parents too! ---
**Author:** ![Hyperelastic](https://avatars.discourse-cdn.com/v4/letter/h/a3d4f5/32.png) [@Hyperelastic](https://boards.straightdope.com/u/Hyperelastic)\ **Post date:** [November 28, 2003, 4:34am UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920/75 "2003-11-28T04:34:47Z")
> [@](#): > > \*Originally posted by nyctea scandiaca \* > \*\*Very funny. > > But seriously, as best as I could ascertain, the reason West Virginia has that sterotype attached to it is because long ago, WV was very isolated and rural, and is very mountainous, with lots of narrow valleys or “hollows.” These geographic features would create pockets that would severely isolate people for generations. So I suppose that led to some sort of incest on occassion. Anyone else know anything about this? \*\* My family lived in a sparsely populated area of eastern Kentucky in the 1800s. I’ve done extensive genealogical research, and while I have never come across a case of incest (i.e. cousin marriage or closer), I have noticed a strong pattern of marriages occuring within the same relatively small circle of people. For example, my great-grandfather’s uncle married my g-grandfather’s wife’s mother after her first husband died. In other words, my g-grandfather’s uncle was also his step-father-in-law. Also, my grandfather’s father and stepfather were cousins. So my family tree looks normal except for a lot of dotted lines going between branches. It’s not incest, but it is startling to modern eyes, where it is very unusual for a bride and groom to have any common relatives. I think it was the result of geographic isolation and the frequent need to remarry due to the early death of a spouse. I don’t know how widespread this sort of thing was, but it could certainly account for the incest jokes. I wonder if there are other regions that had similar social practices and also have to deal with the incest jokes. ---
**Author:** ![Sinungaling](https://avatars.discourse-cdn.com/v4/letter/s/838e76/32.png) [@Sinungaling](https://boards.straightdope.com/u/Sinungaling)\ **Post date:** [November 28, 2003, 5:44am UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920/76 "2003-11-28T05:44:25Z")
Wasn’t there some novel set in the Appalachians that presented mountain folk as violent, incestuous hicks? Apparently that was what started off the stereotype of those crazy ol’ mountain folk. I think the story was from the 1920’s or 30’s. Sorry, can’t help you with more. ---
**Author:** ![The\_Griffin](https://avatars.discourse-cdn.com/v4/letter/t/a87d85/32.png) [@The\_Griffin](https://boards.straightdope.com/u/The_Griffin)\ **Post date:** [November 28, 2003, 12:41pm UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920/77 "2003-11-28T12:41:36Z")
> [@](#): > > \*Originally posted by macabresoul \* > \*\*Actually there wouldn’t be anything biologically wrong if 2 siblings had children. Incest doesn’t cause widespread mutation like everyone thinks. It just increases the chance of the child getting recessive genes from both parents. > \*\* It increases the chances by quite a lot actually. It’s not a good idea. ---
**Author:** ![Bricker](https://avatars.discourse-cdn.com/v4/letter/b/977dab/32.png) [@Bricker](https://boards.straightdope.com/u/Bricker)\ **Post date:** [November 28, 2003, 3:21pm UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920/78 "2003-11-28T15:21:02Z")
I dated a girl once that confided, in a semi-drunken stupor, that she had slept with her brother, that she initiated it, and that he was the love of her life. She was upset because bro was getting married and cutting her off. I didn’t date her again. ---
**Author:** ![lollipop](https://avatars.discourse-cdn.com/v4/letter/l/77aa72/32.png) [@lollipop](https://boards.straightdope.com/u/lollipop)\ **Post date:** [November 28, 2003, 4:57pm UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920/79 "2003-11-28T16:57:19Z")
There seems to be a lot of guys out there that wouldn’t mind having sex with twins or sisters. I’d call it incest pretty soon after they touched eachother, but I don’t think it has the same stigma as brothers and sisters doing it. Either way IMHO it’s pretty icky. ---
**Author:** ![Badtz\_Maru](https://avatars.discourse-cdn.com/v4/letter/b/e36b37/32.png) [@Badtz\_Maru](https://boards.straightdope.com/u/Badtz_Maru)\ **Post date:** [November 29, 2003, 1:53pm UTC](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920/80 "2003-11-29T13:53:56Z")
I’m pretty sure I wouldn’t have a problem with it, if I had any siblings I found attractive. Both my sisters are 40-something grandmothers, though, and I would never even consider having sex with them if I wasn’t related to them. [Previous page](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920.md?page=3) [Next page](https://boards.straightdope.com/t/did-you-ever-have-sex-with-a-sibling/214920.md?page=5)