I'd be okay with that regardless of the orientation of my partner, as long as we discussed it first and set clear boundaries around safety and respect. That's because I'm polyamorous, though, it's a myth that all bisexuals need to sleep with people of different genders all the time to be satisfied. Plenty of bisexuals are comfortably monogamous.

I am ok with it as long as we worked it out to fit our relationship model in a way that we are both comfortable with.

nope. monogamy or nothing for me. (my girlfriend and i are both bisexual, that doesn't change anything for us.)

I'm a woman, and if I'm with a man or woman or gender non-conforming person who wants to have sex with a man, then that's not about me or our relationship. I'm not a man, and I can wear a strap on, but I'm just not a man. That's not my gender identity. So yeah, I'd be cool with that if we talked about it. I'd be more leery of them having sex with someone of my sex, because then I'd wonder what I was doing wrong.

I guess I don't really understand the preoccupation a lot of people have with bisexuality. Just because you're attracted to people of both genders does not mean that you are incapable of maintaining a relationship with someone.
I'm bisexual and in a serious long-term relationship with someone of the opposite gender. A lot of times I get the "how can you be in that relationship, I thought you liked women too?" question/confusion/acc usation.
I really don't understand it. Yes, I like women. Yes I'm in a relationship with a man. Yes, I'm okay with that. Plenty of straight people are in relationships and are not constantly bombarded with the "but how do you not cheat?" question. I don't get why we bisexuals have to be asked this on a daily basis.

I don't give a crap what their sexuality is, why does that even matter? How is that relevant at all?

Bi, pan, straight, gay, flexible, doesn't make a difference. It entirely depends on our relationship, not their sexuality.

A person is a person, so it would be regarded as cheating

yes, but I'd like to have an open relationship.

Personally, I am bi, but monogamous. That would be cheating to me.

only ok if you talk about it first, and everyone agrees

I couldn't do it, so now, it must be monogamous.

It really depends on the situation. But generally, no. I'm pansexual and even though I can be attracted to many different types of people, if I'm committed to a partner I'm committed.