K, here's a couple I do that gives a killer orgasm when fapping:
During your fap, your balls will slowly move up towards your body over the course of a few minutes before your orgasm. Something to do with the transportation of sperm. Anyways, right before you orgasm, reach down with your left hand and grab your balls gently, then gently pull them down, slightly away from your body. I don't know why, but this just makes the orgasm way more intense.
This might sound funny, but it's seriously awesome. If you like having your nipples touched by a chick when you're banging her, you'll probably like this one. Buy a couple of toothbrushes. Hold them both with your left hand. Basically kinda like chopsticks, but spread them wider so that one toothbrush is rubbing your left nipple and the other is rubbing your right nipple. Now fap with your right hand while rubbing both your nipples with the toothbrushes using your left hand. Usually gives an intense orgasm.
Post up yours.