Lots of people (more so women than men), like to feel they are being "ravaged"..."controlled"..."at the mercy of their lover".
If you not into giving her a good "whack" or not sure if this is what she really wants, start off a little slower.
Try a combo of mild-medium physicalness with some mental.
ie. Next time at that "point" during sex, grab her hair, pull on it hard and say..."xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" (fill this in with whatever you think she'd like to hear that would turn her on more).
You should be able to tell by her reply which will be either like...
"Fuck off you freak!!!" or "YES..YES..."
If it was turning her on or off.
Then maybe give her ass or leg a good slap, or face(milder on face)
and say "I did'nt hear you"...lol
Look for the response. Later ask her if she liked that part where you did those things. Must communicate your feelings on it to each other.