Smiling with glee, Sabrina turned over with a youthful bounce, wiggling her bottom at her brother for a moment before he slid his beautiful cock into her eager pussy.  She gasped, always finding the initial entrance such bliss. "Ohhh...Sammm...," she purred from deep in her throat.  He didn't wait for her to adjust, starting to pump his hard cock in and out of her dripping cunt.  His hands gripped her hips, pulling her back with each thrust as she pushed back against him, both obviously eager to cum and rapidly getting there knowing each other's bodies well.  His cock fit her perfectly, her breathing became shallow as she felt the familiar continue to build again from his attentions with his fingers just a minute before.  Her muscles flexing and clenching around his hardening cock.  She leaned forward, pressing her face into the pillow, her fingers clawing the sheets.  "Oh god...oh god...that feels so good..."  She was oblivious their sweet little sister had entered the room.  She might have stopped had she known.  She probably wouldn't have though, she was too lost in the pleasure of her twin fucking her from behind.<br/><br/>