my sister is having sex with another girl

Okay so here's the deal. I'm not sure what to do about this.

My mom gets home from work at 7pm every night, and on fridays has to work until 10pm, our dad isn't around. I usually work nights (I'm 18 and in high school so I can only work after school).

I was supposed to work from 4-9:30pm friday night. We were super dead and my manager sent me home way early at 6pm.

My sister usually stays at a friends house until my mom or me are home or just sits around at our house. I heard her and someone else in her bedroom. I just looked in (we aren't like, really private) but I saw my sister laying on the bed naked with her friend on top of her naked and having sex. Neither of them saw me as jumped back as soon as I saw.

I then just made a bunch of noise in the kitchen so they knew I was home and I could hear scrambling, and they came downstairs acting like nothing..

I'm just really confused and concerned. Should I tell my mom? My sister is only 13 and I don't know what could of caused this.

I don't know whether to confront her myself or tell my mom. What can I say to my sister? I just think she's too young to do stuff like this. And I don't want to see my mom freak out or anything.. It freaks me out even more its with another girl.. I'm not homophobic or anything but my sister is talks about boys and how she thinks this and that boy is cute.. never anything to suggest she's been doing this.

is it normal for girls this age to do this kind of stuff? I sure didnt when i was that young..

Voting Results
73% Normal
Based on 153 votes (112 yes)
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Comments ( 5 )
  • marickwolfe

    Leave her be. It's not like she was being raped or anything.

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  • chaosdragoon1

    She might simply be experimenting with pleasure.

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  • lanceosm

    Girls do that shit dude for a laugh confront her

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  • shade_ilmaendu

    The only thing to be worried about is the age... Is she really mature enough to handle it? It seems like it's common now, being sexually active this young, so I guess it's normal but not necessarily good. I know I wasn't mature enough at 13 for that shit

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  • Pornstarfiend

    Only two options to do in this situation. Option one is never say anything & pretend you never saw what you did. Second option i don't think you wanna hear or could even handle doing. So looks like option one is the winner unless you can handle the 2nd option

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