Please choose the correct ending to complete the given sentence: Doing crunches: As he brings his elbows towards his knees, a loud crack can be heard as the man laughs, "that hurt my ass. " he

Ending1: pauses for a few seconds then continues to talk loud to break up the pain. Ending2: attempts a second sit-up and with another cracking sound, exclaims and grabs his buttocks. Ending3: quickly brings his knees to his chest and grinds his hips as a level of masturbation appears he is in. Ending4: repeats on a few others that have been recorded.

Answer format: ending1/ending2/ending3/ending4