When you are having sex with a woman who is on her period and cum inside of here causing the blood and cum to mix to make it look like the inside of a cherry pie.
when your girlfriend is cool enough to let you do this. Or wife. It's meant to be nasty so I'm not so sure you'll ever get to do it since a Cherry Pie Filling requires you having to stir the paint.
by Skrimp Weiner March 15, 2014