An eventful night

Kevin had no idea what happened, he couldn't feel anything and everything was black. In what felt like an instant everything returned, but things weren't quite the same. He felt like he was filled with something in his groin and his chest was heavy. Something was slamming into him from behind and his tits were swaying. Wait, he had tits?! As Kevin's senses returned, he heard a familiar voice's moans filling the room... it was his mother's! He was on his elbows and knees on a fancy looking bed. Being in a mild panic, Kevin turned his head only to see his Dad naked behind him, pounding his mom... no him from behind. Kevin also started noticing the slapping noises of Dad's pelvis smashing against his butt. It was somewhat erotic but this was so wrong. His eyes went wide as he realized what was happening, he had swapped with his parent during sex, and it was his mom no less!

Kevin quickly turned his head back in distress, he did not want to keep looking into his father's gaze. This while situation was so wrong but also so taboo, something in Kevin had awokened. Something that wanted this. Was it a coincidence that he prefered MILF porn? But on one hand he was never the woman in his fantasies so it didn't make sense to him.

In pure instinct, Kevin started matching his Dad's thrusts back onto him and dug his nails into the bed sheet. Dad gave him a quick slap on the butt which made Kevin cry out in pleasure as Dad kept pounding him. The slapping noises and moans intensified as they got closer to climax. Kevin felt the cock inside him twitch and then it happened, he was filled with Dad's love seed, which made him climax. Dad turned his head and kissed Kevin passionately and said "I love you" between breaths.

Kevin had barely time to reflect as a moment later the world went black just like it had done before the swap happened.