Ben Affleck proves that he's a really great dad by cheating on his wife for diaper money. After realizing he had no dough left for Violet's Pampers (probably blew that week's baby money on poker and booze) he decides to pimp himself out for cash:

He reportedly picked up some nappies and told shoppers: "I've got to get these or my wife will kill me."

According to onlookers, the 33-year-old refused to sell his Boston Red Sox baseball cap in return for some money - but settled on smooching a fan, who then offered to pay for the baby items.

Even though it's a Red Sox cap, we probably would've preferred that to a sloppy seconds make-out sesh.

Ben Affleck's nappy kiss [Female First]