This is a scene from MEATHOLES, which was basically one of the most extreme porn sites on the web back in 2003-ish. It's funny. This girl can handle a fist while the cameraman inquires about her past, but let one slip in her face and that's where she draws the line.
All I can think about is the people who jack off to this shit. I envision a crowd of a thousand Japs in a dimly lit adult theater, simultaneously ejaculating just as the girl's vagina gets blown into oblivion by a point-blank blast from a 12 guage. Enthusiastic high fives, everywhere.
Way too homoerotic for my taste, but I did get a laugh out of his 'grand finale' and the excessive use of the word "bro". Watch all the way through and you'll understand.