I'm senior, she is freshman in high-school. She added me on facebook, wanted to meet up, because she 'thought I was hot' and 'liked older guys, because they are more mature'.

Okay, so I grabbed a chance and went out, texted her to come out of the bar alone and we made out. Met a couple of times after, for some making out, I'm really sure it would escalate to sex, if it wasn't for fucking logistics (neither of us lives alone).

I'm ALWAYS dominant, escalating, told her that I don't want a relationship and have other girls I'm seeing so she won't think she's the only one, she said it's all-right. Asked me if that means she can make out with other guys, I said no (I didn't mean seriously). She threw tantrum when she thought I was with other girls last friday, I handled it really good and she apologized for her behaviour. I think I handled every shit-test she threw at me.

Now the problem is that she mentioned my school mate a couple of times. First time she mentioned it when she asked me who is this guy that I always go on a meal with. I answered that it's my school mate, she said that her school friend likes him and that we could sometimes go out together. I said maybe and forgot about it.

Now she hits me up on facebook asking if that deal is still on (me, her, my school mate and her friend meeting up).

Never in my life I will do it, because it would be fucking awkward for everyone, because I'm not fucking match.com. Also I'm in doubt who really wants to meet up with my friend - her friend or her? I'm not jealous, but this kind of worries me. My mate is also good looking guy and maybe that bitch just wants to be intimate with as many cool senior guys as possible. Last time she asked me if I ever exchanged partners with my friend, like in swinging sense. I said that I'm not into that shit. I'm not stupid and can see where this bitch is going.

I usually never have this problem, but I don't know what to answer here. Should I tell her to fuck off with her friend? What would you answer?

EDIT: Some of you understood me wrong. I DON'T mind her making out or having sex with other guys. It's just this problem that she wants to hang out with me, my mate and her friend that annoys me.