When a girl sucks a man’s dirty hairy unwashed balls, and he jacks off furiously until ejaculation, causing the cum to “snow” on her face. He then rubs his dirty hairy balls through the cum on her face.
Bust a load into your sister's mouth and then immediately slap her acrossed the face with a spatula, causing your sister to spit your cum all over your grandmother's face.
You and your sister aren't allowed at your grandmother's anymore, she wasn't very pleased with your Alabama Snow Shovel.