The art of laying back and letting your wife or lady friend gently and gingerley lick away at your nutt sack. Slurping your balls in and out of her mouth and usually accompanied with her stroking your hard cock, hopefully, until you bust a large gooey load.
Rhonda caught me totally by surprise last night. While I was watching Lost on TV, she began rubbing my cock through my shorts and got me rock hard. She slid my shorts down to my ankles and was one hell of a Bag Lapper for me. And as a bonus she let explode in her mouth and swallowed every drop. I was in heaven.