Just go with it, and if your not sure JUST ASK......if you don't think you guys can talk about sex or what she likes then you shouldn't be having sex.

Darkneon I like it like that too! press your hips into her make her feel like a sexy goddess
kiss her neck (I go crazy)
move your hands up and down her back, butt, thighs, and then to the money spot when you don't think she can take it anymore.
Make sure she is wet enough for you to enter her if not then don't just ram it inOUCH!
and yeah shower after sex with her is yummy!