by LIMBS
Maybe I don't get it, being male, but the "loud popping sound" part seemed it would be very painful. I would be reluctant to be that rough. Other than that, I liked it.
Seriously. Was reasonable up until that point, and it killed the mood. You want to feel pain? Try having something go past the cervix. And without it being dilated? That's a fast way to a) tear b) scream in pain and freeze and c) have debilitating cramps for a month.
Learn human anatomy. It may help.
Also, this sure seems like a very short story. (Not going to copy/paste it into a Word Processor file to perform a word count, though.) Did it surpass the 750 word minimum?