Before having
intercourse with a woman, install a hook or loop on a wall where you will be
having sex. Get her to agree to have sex with you at this place.
During sex, you should be
on your back and she should be sitting up. Pull her hair over the hook. Rather than casual humping, you should use the hook as a pulley- yank down on her hair to lift her up, and then release to bring her back down.
This is easiest if the woman grows her hair out for a while first.