God you're an absolute dunce. I've got really good chick friends that are 18-19 and I'm 23. Age is like, the worst possible thing to determine friendships/more over.
22/2 = 11 11 + 7 = 18 Even the formula says it's a-okay. Really though, if they're legal there really isn't a problem if its just casual sex. Relationships with younger girls is strange though.
The older you get, the less difference age makes. Like here, 22-18 is fine. But 10 years earlier, 12 - 8, is not. Unless you're spyder.
You have to do it, just to rub it in your sister's face. Also, she might be cooler to your sis after that because she'll want to come over more often. Nobody will suspect a thing...
You're a #$%#ing creep dude. We where together for... well, until April. And we still lived together post the break up in April. She still hasnt joined the military btw.