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.
Usually when the girl flops around like a fish it means she's having a pretty intense orgasm and needs a quick time out. Dildo baggins here didn't get the memo.
This video really hits close to home. I too was once ridiculed for bustin my sloppy goo nuts prematurely. My ego was scarred and so was my penis (herpes). Watching this brings it all back.