If your guy doesn't do a thing down there, he may be choosing to do so because he thinks any maintenance aside from shaving his face is considered unmanly. A non-trimmer is traditional and chivalrous, but you shouldn't expect a whole lot of spontaneity in the bedroom. He's a missionary position kind of guy. He may be sweet, but lazy when it comes to sex. He's not necessarily unadventurous, but you'll have to be the one to suggest and initiate exciting things to try under the sheets. He'll follow your lead as long as it doesn't require too much effort on his part.