Is it normal i like anally pleasuring myself?

I'm not gay really.. I have done some things in the past.. But im into females. I dont like guys. But if id be forced into something homosexual with another, id be kind of okay with it if i never saw their face. But a while ago, i was talking to my ex (who was still my girlfriend at the time) and she told me she tried shoving her comb up her butt.. I thought it was interesting and dropped it.. I came home and took a shower and i got bored. So i thought "what the hell?," and tried it.. Now every so often, i have a fun night and do those acts.. I like them, but i just dont know if its okay, or even accepted by anyone.. I just dont know if it's normal...