Question about roommate etiquette

I live in a classic triple with 2 other girls. I recently got a boyfriend and would like to have him come over. What is the proper etiquette about this? Is it okay if he sits on my bed to cuddle? Is it okay if we take our shirts off? Some kissing or making out?

I have asked my roommates and they both said they don't care and anything is fine, but I still want to be respectful. One of them has a boyfriend back home and the other doesn't date, so this hasn't come up yet. We all get along pretty well, hang out on weekends, etc.