i know the whole 'not all girls orgasm' and 'all girls are different' but i am pretty certain that these girls have had vaginal orgasms before and i want to give them one. i honestly do fuck like a 'pornstar' if that makes sense. i bust out all diff positions, do foreplay etc. the problem i noticed is that i would be pounding it hard and the chick is moaning and whining like shes about to cum and i pound harder but i eventually have to stop because i get tired quickly or she just continues to moan the same way for a period of time where i just 'giveup' in a way. i can never fully get the chick to cum. i even play with the clit while fucking any tips or ideas on what im doing wrong?