Tantric Sex, anyone?

Just a note for all you boys out there. Sex that doesn't last longer than the blink of an eye is not ideal, but... And this is a but(t) the size of J.Lo's... Sex that goes on for hours will NOT automatically be a good thing! And if your girlfriend gets that distant look in her eyes, and then all of a sudden has an orgasm, she is probably just faking it out of pure pity. We like to have enough time to relax and get excited, but we do no, and I repeat, NOT, want a "nine hour marathon"/blistering. =P