Shove your penis in sister's ass
From Create Your Own Story
You quickly unzip and force your sister onto her stomach. You pull your hard cock out and rub it down her ass to her rosebud. "Please don't do this, little brother. I promise not to tell mom if you just stop." But you don't stop and your cockhead soon pushes past her anal ring. You press her face into the pillow to stifle her as you slam your hips into her over and over. Before long sister is reaching back and working the dildo in her pussy as you abuse her ass. Pretty soon the tremors of an orgasm pass through her and you feel your balls tighten.
Do you: