Both straight sex and gay sex is wrong!

Is it a sin to be gay or engage in homosexual behaviour? If you like a guy I don't think that is wrong. As long as you "truly" love him and aren't just doing it to get laid. If you decided to have sex with that man I believe that isn't right. I believe straight people can do it, but only for the soul purpose to have a kid and not just for a good time. I feel like it's a sin to have sex in straight or gay relationships if your only doing it for sex.Tell me what you think.I don't personally think sex is a bad thing. I just want to get feedback from people on my idea.