I asked /r/relationships for advice, but got minimal useful advice from them except a bunch of chimpin'.

Anyway, I get teased a lot by my friends that I'm a bit of a wimp for not wanting to sleep with my very attractive female platonic companion, but that's the thing: I really don't want to.

I like our dynamic: I like getting the girlfriend experience without having to deal with the attachment and sexual drama of it all. I am seeing two sexual partners right now, and so those needs are met; I don't need her for an outlet.

I've thought about sleeping with her, debated it heavily, she treats me like a boyfriend, we cuddle, we go out on dates (that she pays for, even), she buys me ganja, etc. but I'm still not too sure.

If anything, her boyfriend (who she introduced me to) is extremely jealous of our relationship, and she even calls him a bitch to my face, telling me what a weak man he is.

She probably wants me to initiate, but I like our dynamic. Does this somehow make me inferior as a man as my friends suggest, because I don't want to sleep with her? I seriously don't see her as a viable piece of ass, she's almost like a sister to me (though I'd be lying to say I haven't considered fucking her, as in the above thread).