When one person blows up a balloon inside another persons anus.

1. A sexually act in which a man stands slightly bent over with a woman kneeling behind him. She will purse her lips tightly around his anus. She then tugs on his flaccid member from between his legs as he releases a preferably hot fart in her mouth, thus expanding her cheeks much like that of a hot air balloon. Aviator goggles and scarf are optional.

To fart in one's mouth while that person is licking your asshole.

Performing oral sex on a woman in 69 position and she farts into partners nostrils during act.

Farting into the fourskin of a semi erect penis

When a girl eats a guys bootyhole while giving him a reach around, he farts in her mouth.

When a man/woman is performing a generous deed of cunnilingus and the recipient lets out a warm and surprising quieff. PPAAAAAAAH...HOT AIR BALLOON!!!