To perform a backshot, you gotta screw somebody from behind, bareback. either hole will do. Now, when you pull out instead of blowin it internal-like, and jizz on her back, THAT'S a backshot.
When the female sinks in or arches her back while on her knees and hands on the floor. The male proceeds to enter her vagina while she's in that position. It is recommend that the females throw their ass back while in that position and the male grabs her hair and slaps her ass a few times while saying dominant words.