Tough question. I would have to observe for a bit to have an educated opinion

fantasy of you yes it does but we need more details. Tongue or no tongue?  What are you doing with your hands?  Inquiring minds want to know!

Are you attracted to your friend (or other women)?
Do you enjoy having sex with women, regardless if you'd like to have a relationship with them or not?

I like the term "heteroflexible" a lot; i'm primarily sexually attracted to men, but also enjoy women from time to time.  

Ultimately, you're the one who decides your sexual orientation.