Wait. Just wait. Wait until you’re in an actual relationship with someone. Trying sex for the first time with someone you don’t know that well and you just want to “see what it’s like” is basically guaranteeing a sucky first time.
Just wait. There’s no rush. Date him, if you want, but don’t just hook up with him like that. Is it really the way you want it to happen? I don’t think it is. Not from the way you spoke.