invisible Wrist Watch

After having sex with a woman you don't want to forget, ejaculate in your hand and give her an Indian Rug Burn where her wrist watch would be. Then Everytime she goes to look at the time she will think of you.

So Davey and I keep sharing Sally as a sex partner but she is always calling Davey not me. But last time I gave her the old Invisible Wrist Watch and now she calls me like clock work!