I didn't bother locking my door that night. If Sean came in it would mean I had gotten to him, and honestly I didn't really care if he caught me masturbating again. It would bother him more than me anyway.

Sure enough just as I was getting ready to go to sleep the door swung open followed by my brother. He wasn't even fazed this time when he saw that I was naked.

"You're not playing fair Ash," he said.

"All's fair in love and war dear brother."

"And which is this?" he asked, clearly staring at my breasts.

"Right now? Both."

It turned me on to have him watching...