What is A Boston Creme Pie?
1.
When a guy is getting sucked off, yet before he's about to cum, he pulls out and knocks out his/her partner w/any type of blow to the face. He then opens his partner's mouth, which then allows him to take a shit in it and giz right on top.
I gave my friend's mother a Boston Creme Pie last night and she's still cumming back for more dessert.
See