I need some din darn sex advice.

I have an incredible opportunity to spend the night someplace with my boyfriend. My parents are very religious so even going on dates to the movies with him has to be with another couple. And although there’s no pressure to do anything that night (because he’s a great guy and someone I can actually be myself around), even saying this I still would like to know if there’s anything I can do to prepare for a sexual encounter for future referenced need be. I’m a virgin (I really didn’t need to specify that it’s blatantly obvious) and I know the first time can be painful. (And even a couple times after it). I guess I’m just asking for tips. Things I can do to prepare for this because I have a little while.

(I’m going to be eighteen next month. I’m not 10 I promise.)