I know Jonni Darkko has another __ for __________ in the works but he hasn't said who the girl is yet. I doubt it can top F for Francesca though, that 20+ guy blowbang at the end might seriously be the best i've ever seen just like the thread title says.

The one in G for Gianna is pretty good too, shorter scene with less guys and they don't all shoot on her face but still worth watching.