How could you even fathom doing this? Sex is something personal and intimate shared between two people who are deeply in love. Why the fuck you wanna give that intimacy to other people is beyond me.
And your girlfriend sounds like a slut: "I'm ok with him fucking me, but no, no kissing." It's fucking retarded.
Your handle is AssToMouth, and you're telling someone else how to be personal and intimate. Why the fuck you wanna give advice to other people is beyond me.