Friday the 13th never meant anything good for the Winchesters. Dean had been curled up on a motel bed, groaning ever since they got back from a hunt with a fertility goddess.
"Dude, I have the worst ...cramps." Dean said, screwing up his face.
"Bad burger? "Sam said from his book.
Suddenly, Deans face slackened. Sam looked up. "Dean? You alright?"
Dean could only shake his head no. He slowly sat up and Sam then noticed the blood puddle on the bed.
"Dean, where are you bleeding and why did you not tell me? "
"Because I started my period."
A/N: I had this cute little fic idea from a fem!Dean story. Imagine Sam on a pad run -for his brother XD! R&R ..if theres good feedback, there might be a follow up chapter.