A. Her pelvic bone breaks.
B. Her pelvic bone becomes misaligned - resulting in significant pain, and walking becomes difficult.
C. The vaginal area becomes severely bruised, resulting in significant pain, and walking becomes difficult.
In any of the above scenarios, the woman is deterred from any form of vaginal (and usually anal) intercourse, for a large amount of time.
Girl 2: We were really going at it last night, but then he gave me a Tennessee Vaghammer, and now I think my pelvic bone is broken!
Girl 1: Oh noes! Looks like you've got a Vaginal Coma!