first of all, make sure she is SANE
There is nothing like sitting in the police station acused of rape and abuse....
One of the things that makes them attracted to this is BEING POWERLESS, and witnessing HER MANS POWER. You have to trow the ***** around like she is your personal sex toy, and there is nothing she can do about it.
Second thing; she has to be in the mood (horny). feel her out. find out what turns her on, does she like it rought right off the bat, or does she like it to escalate to it (this is the case most of the time)
When your POUNDING her doggy stile hold her hands behind her back with one hand (use your imagination), and hold her head in place by her hair with another.
if your doing her missionary, position your body verticaly, take her legs and put them over one shoulder (keep them together), take her hands, into yours, cross them and sqeese her legs with your forarms. Then by straightening your body lift her hips into place, and pound her like there is no tomorow.