This was different though - not physically of course - my stiff prick slid in and out of a gripping vagina. Its muscles tugged and pulled at me as I repeatedly intruded into its sacred space. However, this was Stacy - the sister who barely knew I existed for the first two decades of my life. It was different now. The cold narcissism was gone - it had been replaced by a yearning - a desire for companionship. It called to the part of me that couldn't stand to see someone who felt like they were isolated. I responded.

My sister gasped as I pressed her to the wall of...