Normal to Have a Partner and be Bi?

My cousin introduced me to one of his friends, a guy. The guy is in a relationship with his long time best friend (another guy). But both of them are bisexual.

I wanted to ask him how does his relationship work. Like, he has a male partner but both of them find different women attractive? But I didn't ask him because I didn't want to seem disrespectful.

So what do you guys think. Is it normal to be bi and in a same sex relationship?

I am curious to know.

Sure, why wouldn't it be? My FWB is bi (and before me had only been with guys)

I'm not sure why it's confusing? Being bi just means that gender isn't a factor in what you find attractive about a person. Maybe you are attracted to someone's smile or their sense of humour or their personality.

If a straight man is in a relationship with a woman, it's not like he magically stops finding other women attractive. It's just... he's in a relationship... he chooses one person.

If a bi person is in a relationship, it's not that he magically stops finding other people attractive... he just chooses one person.

I mean - unless they are in an open relationship or something - but then that has nothing to do with sexual orientation. That can be true of straight couples too.

I like voluptuous redheads and I enjoy fit and trim Latinas. I'm plenty capable of settling with one of the two just as I'm sure a bi person can settle for a man or woman who suits them. To echo the others, I'm not sure where the difficult concept is.

Some people just switch back and forth between men and women.