I Thought This Was Supposed To Hurt

Ally Imogene was your classic tomboy.
Played basketball, hung out with the boys, and microscopic boobs. Not that boobs were what made a tomboy, though.
On a classic, normal school morning of playing a game of softball with some boys and the girls that weren't afraid to get dirty, someone hits the ball into the woods. Ally runs out to get the ball, but has a strange encounter in the woods.