What do I say to my (half) sister whom I caught giving a blowjob at only 15 years old?

My parents are out of town this week and they let my 15-year-old (half) sister stay at home by herself. ( we have the same mom but different dads after my dad passed away ) I went over to their house yesterday to see if my sister needed anything while my parents were gone. She knows she's not supposed to have any guys over but I found out she chooses not to follow the rules. When I walk in their house I did not see my sister anywhere so I walked back to her room where the door was cracked open, I just peaked in the door and there was a guy laying naked on her bed and my sister was naked kneeling beside the bed giving him a blow job. Neither one of them saw me right away until I said loudly ''hey'' my sister quickly jumped up and looked at me in shock, I could obviously see she had cum all over her lips and chin like he had just finished in her mouth but was still going down on him. Both of them quickly tried to cover up and I told them both to get dressed and that he needed to leave. The boy was our next-door neighbor that grew up with my little sister since they were small kids. After he left I asked her how long this had been going on and she said for about 10 months. I did the math in my head and that would make my sister only 14 and the guy only 13 when she started giving him blow jobs. I tried to tell her she was much too young to do this and had so much life ahead of her that she needed to save it until she was older. I didn't really have much else to say so I just kind of left a little disappointed. I told her I wouldn't tell the parents but I feel like if I'm not going to then I need to give her some kind of advice but I've never had to deal with this sort of thing and I'm not sure what to say. Do you have any good advice that I could give to my sister? I did ask her and she said they were not having sex it was only her giving him blow jobs.
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Most Helpful Guys

  • You should have said "Woops, sorry!" closed the door and gone home. Then you could talk about it later.

    It's not your job to keep your half sister from becoming sexually active. In fact, once someone decides to do it there's pretty much nothing anyone can do to stop it without putting them in a straight jacket.

    You can offer advice, but as early as it is, it sounds like your sister is growing up and you can't stop it without destroying your relationship.

    Your choice is whether to drop a dime on her now. I can't advise you, other than to say that dropping a dime won't undo what was done or prevent future occurrences.

    Good luck. She could probably use a more experienced older sister to talk to about what's going on from time to time. One that won't judge, and all that.

  • How old were you when you started doing those things?

    The fact is that there are 15 year olds doing exactly what your little sister is doing, enough to make it a common occurrence. Yeah, it sucks, but like Dionysus said there's not much you can do about it. If it's not at your parents' home then it's going to be somewhere else.

    Also, your little sister bullshitted you. They were BOTH naked and they only give blow jobs? I'm sorry, I just don't believe it.

    The biggest issue I see here is that your sister would break that trust with her parents. I think it's completely disrespectful. You can try shaming her to make sure she at least doesn't do it at your house but even that isn't a surefire thing.

Most Helpful Girl

  • I would be more upset she thought it was okay to pleasure him and not have him pleasure her back than the fact she was giving blow jobs. There's way to much wrong with that fact alone.

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What Girls & Guys Said

1 14
  • I suggest you stay out of it. Fifteen is a little young but if she's just going down on him, it's not that big a deal. I'd tell her to get on birth control so she doesn't get pregnant and to practice safe sex.

  • Dionysos is mostly correct, however at that age she might be way below the age of consent, and both of them qualify as sexual predators as child molesters (yeah, the law is stupid).

    Dropping the dime may have lifetime consequences.

  • Your role as a sister should be to try and educate not parent and condemn. Basically inform about the dangers (emotional and physical) about sexual activity. Basically educate her as much as possible without coming off like you are coming down on her because if your sister is like most teenagers she is going to rebel against someone telling/scolding her on what to do

  • I would say that it is not your place to determine when she is ready to have sex. If she is giving him a blow job and not having intercourse, she is safer from a pregnancy standpoint.

    As an older sister, you had the opportunity to be a mentor and supporter for her as she matures and experiences sexuality.

    Buy becoming a "parent" you have ended that possibility. She probably won't turn to you for support and advice.

    You had an opportunity and in my opinion, you may have lost it.

    If it is a neighbor boy that she has grown up with, I am guessing it was a consenting event rather than an older boy forcing himself on her.

  • it it was my daughter, I'd want to know. But, it's a tough call for you. give her a warning that next time you'll tell. Also, explain to her what can happen if she entertains young men in her room by herself. Particularly if they have both disrobed. Also, tell her that the boy can end up in jail if this happens again because she is not of age of consent.

  • I say it's none of your business.


  • Seem you jealous and want to suck or fuck the boy

  • blackmail her, then maybe she gives you one, then if she does you can always come back any time

  • Use it to get some too

  • Ask her for one

  • OMG. You MUST Punish her.

  • Nothinleave her be

  • If she were my sister It would be super embarrassing but, I would inform her on the consequences of unsafe sex. Sure one boy isn't going to harm her but, She is young and curious, Regardless the sexual activity has begun and should be informed about her actions

    Oh and I agree age 14 is too young for sexual activity and no it's not too late to change anything. Just try not to be forceful about it and let her know you have here best interests at heart and in the end it's her choice

  • Fifteen is too young for sexual activity. She is already displaying poor choices and bad habits. Its probably too late to change anything, however.

  • I hope she'll eventually return the "favor" when she manages to surprise you in an intimate moment by saying "WHY HELLO THERE" as she opens the door...

    People make such a fuss about sexuality. If she ever had sex and used protection at all times always and probably was also on the pill, there'd literally be no problems if she's actually in a committed relation aka she was at no risk for getting STDs.