Milo

Hey all, im having a bit of a problem. My girlfriend can't seem to get an ogasm unless i go down on her and to be honest thats isn't something i enjoy doing. I have talked with her about it and she tells me she gets it off if I just talk dirty to her while we are having sex, there is nothing that i rather do than give her what she wants but i just don't know how to talk dirty?! What do girls want to hear in bed? Please help me its a real problem.