Too timid...

How do I tell my boyfriend he's too timid in bed? I like it pretty rough and I try to give him subtle hints but he's still just too timid. We've known each other forever but our relationship only recently started.

Ps. I think it's funny because he's such a loud, wild man and I'm such a quiet, timid girl but when it comes to bed we are the complete opposite. He's 34 and I'm 21.