1

“I had sex with my stepbrother about three years after our parents got married. He was in college and had just broken up with his girlfriend who he’d been with the whole time I knew him. We had flirted pretty early on and made out once but weirdly weren’t that close.

I did find him quite attractive though. It was awkward afterward (we had sex three times over one weekend), he ended up getting back together with his girlfriend shortly after and we just didn’t talk about it. As far as I know, no one knew about it. Anyway, I’m now entering my junior year in college and our parents have since gotten a divorce lol, for unrelated reasons. So that’s that…”

2

“Well, our parents moved in together before they got married and we were 16 and horny. We dated off and on for longer than our parents were married and it was very convenient as a teenager to live in a soundproof basement with my GF living upstairs. It got a little weird when our parents caught us but they eventually accepted it, then we “broke up”, our parents divorced and we moved to separate states.”

3

“Had a coworker who was sleeping with his step-sister (both of them were already in college when their parents met and got married). Pretty sure it lasted a while, with them all living in the same house. Eventually got caught by one of the parents which ultimately led to the parents separating.”

4

“We were both 18 and horny. No interesting story really. It turns out that humans just have a strong instinct to just fuck each other, especially when you spend lots of time together.”

5

“I hooked up with my stepbrother the same night our parents got married. My real brother caught us and thank god he’s never fucking said anything. I make sure to never piss him off. But me and my stepbrother still kinda flirt and fool around during family gatherings (Thanksgiving is a LOT more fun now). Hasn’t messed up our lives yet, thank god we’re adults and he lives in a different state.”

6

“My stepsister is hot and I would do it in a heartbeat. Not sure why that’s so taboo TBH. We aren’t related genetically. There’s no difference between her and a stranger on the street. It probably helps that we didn’t grow up together and we don’t actually consider each other step-siblings but even that’s the exact same situation.”

7

“Well we had sex 2 times, she got pregnant. We tried to work it out. It didn’t go well. She left to a different state and then threatened to come get our daughter. I got a lawyer and filed for custody, she never responded and I won by default. I haven’t heard from her since my daughter was 8 months old. That was over 4 years ago now.”

8

“Because if he’s gonna be fucking my mom, you bet your ass I’ll be fucking his daughter.”

9

“We were in our 20s when our parents got married. Got drunk one night years later, smashed, went about our business. We’d hook up every once in a while afterward, but just kinda stopped. No fanfare, no drama, and we’re still cool. Fun while it lasted, 10/10 would hit again.”

10

“Not me but an old friend of mine had a step-sister. They were around 14-15 when their families got together and being at that age and suddenly having a girl who isn’t related to you by blood staying in close proximity made it hard for them.

I guess one day they realized that since their parents often weren’t home they could literally fuck and not have anyone catch them or wonder what they’re doing since they’re brother and sister. This apparently went on until the sister went to uni. They’re both in separate relationships and still get along well (but not too well anymore, if you know what I mean).”

11

“My friend met this guy while studying abroad and they ended up dating and getting engaged (over a 2 1/2 year period) then my friend’s mother calls and says she’s getting married. Long story short, my friend’s fiance ended up being her mother’s new husband’s son he kicked out, cut off, and disowned 8 years earlier.”

12

“In my hometown, there was a reverse case. The boy’s mother died and the girl was the daughter of a single mom. The two married, and always invited their parents for everything. The parents grew close and ended up marrying. So, the first couple ended up being married step-siblings!

These case ended on the court, where the judge decided that, while step-sibling marriage is illegal, the law can’t be applied to past cases (as they weren’t step-sibling when they married), and no law forbid the older couple to marry, as they weren’t from the same family before their children’s marriage, so everybody got happy ever after.”

13

“Hooked up with Dad’s girlfriend’s daughter before they married. Her Mom found out. All she said was “Well, I’m glad you two got it out of your system before you’re related.” Anyways it was boring and pointless. The whole “naughtiness” of it was the best part.”

14

“My stepsister and I have had sex. I don’t regret it. We don’t talk much now but we never did talk much before then either really. We didn’t grow up together or anything so it didn’t feel weird really at all. We’ll see how awkward it gets when I bring a girlfriend to a family dinner someday.”

15

“A guy I knew in high school got laid in the middle of the football field, so it was notable for many reasons and he bragged around about it. Right after our freshmen year of college, they became step-siblings lol.”

16

“So this is a very strange situation.

Not me, but… my mom and dad. Long before my parents even met, my grandparents on both sides got divorced. My parents met, got married, and had me, but ended up divorced before I could form memories. 8 don’t know when it happened. I do know that after my parents got divorced my mom’s dad and my dad’s mom got married. They are still married to this day.

Because of that technically, my parents are step-siblings that had sex. It might have been before they became step-siblings, but I think the story fits.”

17

“Because we both wanted to learn more about each other’s bodies.”

18

“Throwaway here. The sex wasn’t really weird. She approached me one night after I made a rather dirty remark and asked if it would be weird if we experimented. Being the horny 19-year-old I was, I said no since we weren’t blood. That led to a year sexcapade damn near every night when everybody went to sleep. It was great but then feelings started. It got weird, we waited 6 months and broke the news, ended a marriage, and eventually, both felt it was better to move on…”

19

“Kind of a different perspective but I dated a girl in high school and it didn’t work out. I began dating another girl in college and two years later they became stepsisters. I didn’t realize this until we met her new step sister at the mall and she “introduced” us to each other. We both were horribly awkward silent the whole day and I eventually told my GF later that I used to date her new step sister.

She broke up with me because of it and refuses to talk to her step-sister as well. I think their parents have been married for about 5-6 years now. I honestly felt terrible about it.”