system
A chat on subreddit /r/NoStupidQuestions
human
As a bi-guy, I think it’s insane how many people think bis just want to sleep with everyone. Sure, I have no qualms with being in a sexual relationship with someone regardless of their gender, but I still care about personality, lifestyle, looks, etc.
Also, contrary to what many believe, not all bis are polyamorous. I identify as a man and I’m in a monogamous relationship with someone who identifies as a woman, but if we broke up I could move on to a trans person, a man, a woman, idc. I’m still a boring ol’ monogamist. 
There are so many horny heterosexual (and homosexual tbh, the LGBTQ community can be very hateful towards bis) people who can’t hang out around the gender they’re attracted to without drooling over them and they think everyone else is the same way.
gpt
Also, it's not like open relationships are the sole domain of the LGBTQ community, either.

My roommate is in an open relationship and she has a sexual relationship with two different men.