I suggest you break up with your girlfriend and leave both of them alone. Find someone who has an ugly sister. Or better yet, and only child.
Girlfriends - 2000 Sister Sistah 2-13 was released on: USA: 4 February 2002
You should always love her, She's your sister and that should change anything. Unless her girlfriends hotter than yours then NEVER TALK AGAIN!
as long as she is hot hahahahahahaha
Kelly Preston
Only if she lets you, but you would have to ask her out first.
Your question suggests to me that you might be thinking there is something wrong with you when you get an erection over your sister. There is nothing wrong with you. Your body is filled with testosterone right now and anything that moves, looks, smells, and sounds like a female is likely to give you an erection. It's not you - it's your body doing what it's supposed to do. You are NORMAL. You see her as your sister; your body sees her as a female, and to a boy at your age, female means, erection. That's just the way it is. So stop worrying about it. In fact, the next time you get an erection "Over your sister", say to yourself, "Excellent - I'm normal. And I understand why my body is doing this. I love my sister, but not in that way."
She should put it in her mouth.
sister hood of the traveling pants?
Anyone experiencing erection abnormalities should seek the advise of a medical professional.
no, its not even wrong to sleep with her, just say you thought it was your girlfriend
There is really nothing to do. If he likes you, he likes you, and he will get an erection. Just grinding on him should be enough.
It was the nastiest thing i have ever seen it made me puke all over.