So, I have a really nice gf (21 as well) and I'd never want to get rid of her, cheat on her or whatever. She's honestly the one I wanna spend the rest of my life with.

However. There is just that one desire. See, my gf has A/B cup boobs (kinda depends on the bra, there is a bit of overlap between both and she is right in that region) and I like them very much. Of the three girls I've been with, she definetely has the best (the rest had A cup at most).

But at the same time, I see other women, both strangers and friends, with boobs which are just a bit larger. Like a C cup, which I think I really like too. And honestly, I just want to touch and play with a pair of those, just the one time. Just to know how they look, how they feel. I don't even want to have sex, just touch and feel the boobs.

It doesn't really matter who's boobs it is, I'd be satisfied with any. But because that one mutual friend of ours has those like perfect boobs for that, it has kinda become an obsession for me to be wanting to look at them and think about feeling them... sometimes even when my gf is there too. It feels so bad but I just can't help it.