Often when I masturbate, I will use two fingers to push the skin between my balls and ass inwards as I come.

It results in a totally intense "dry" orgasm - where you have an orgasm but no cum comes out!!! It's really practical when you can;t be arsed to wipe up or you've run out of tissues!!!

It can also be used for oral if the girl doesn;t like the taste of cum but you still want to come in her mouth

Give it a try and let me know!!! It might take a few goes before you get it 100%