This is what God says about that: 1 Corinthians 6:18 (New International Version, ©2010)
Flee from sexual immorality. All other sins a person commits are outside the body, but whoever sins sexually, sins against their own body.
“If they think there are no strings attached with casual sex they are sadly mistaken.”
Like I heard a hooker once say, “It ain’t never free, baby!”
I was just thinking emotionally. Someone — sometimes the guy, sometimes the girl — will always get attached.