Needing desperate Boyfriend Help!?

My bf and i have been dating for 9 months and he is having these weird fetishes- first it was his anal and now it is a lesbian fetish. I was bi and i have some thing happen with a few of my friends (who are girls) and he keeps asking me about the time my best friends felt me and kissed me and stuff and now when he is horny he is asking me about what i would do with my friend Sammy. What should i do?