Hitting baby daddy up for sex?

Me and my baby daddy broke up but we are still really good friends. I'm one of those girls that love sex. I don't want to be with him, but our sex was 🔥🔥🔥🔥. I know he would be down (or at least I think) because we joked about it before. We were together for 3, almost 4 years and have 2 kids together. Would it make me a bad person lol