When your balls are all swollen and aching from edging or lack of sex.
Rachel is a cock tease. She dry humped me on the couch all night then left me with the worst purple creamers. I had to rub out a rope.
I spent all afternoon watching granny porn and edged myself to the most painful purple creamers. But the old lady sucked me off when she got home. About blew the back of her head off with that nut.