Everything and nothing is normal in human sexuality, anon. If you’re concerned if this activity makes you bi or gay, the answer would be: probably not. If, when she was licking up your cum, you wished a hot guy was doing the licking instead of your girlfriend…well, then yes, it may be an indication of some less than straight tendencies. As it is, the cum was your own and a hot girl was doing the licking, which seems pretty straight to me. I think any guy who expects anyone else to swallow their cum should taste their own jizz. That’s not queer, it’s just being in touch with your own body! You’re not gay unless you fuck or want to fuck other dudes.
That said, that sounds pretty hot. Way to creatively explore maintaining her virginity while still doing some fucking hot shit! :)
-lane