The morning after a long night of drinking cheap beer, start 69ing with your hubby. Invariably, a very rank fart will develop. Right before orgasm, yell "Drive By" and fart right in her face, then unload in her mouth. This works best on one night stands with fat and/or ugly girls, because no girl you ever do this with will come near you again.
"Why's Laura washing her face?"
"Because Bob AK Sprayed her a few minutes ago."