lol, its something that you can't really avoid. I mean at some point that should just happen, don't think I've ever been with a women that doesn't enjoy that. I mean if that's all she enjoys then you might have a problem on your hand.
But slow passionate sex all the time should be almost impossible because sometimes you just have to get in there.
There levels to it of course, if she need you to damn near hurt her then yeah red flag #1
But over all most women aren't going to complain about being a bit sore or numb after sex unless it's bad.
Kind of like how a guy aint gonna complain about being sore after a good workout.