Colin felt his member go utterly stiff and sighed, dropping his boxers to his ankles.
“Good boy....” Traci blushes.
Colin placed his hands on her hips and pulled her lacy thong off, squeezing her ass as her pumped his throbbing member into her.
“Ohhhhh! Ohhhhhh!” Traci moaned as her ass began to swell up, her butt rising like bread dough until it matched her sister’s in size.
“Mmmmm.... I see why all the girls wanna be with you.” Traci moaned as he pulled out of her ass and rolled her onto her back.
He noticed how soft and plump her lips looked now, the adoration in her eyes.
‘No going back now.’ He thought as he grabbed her breasts and jammed his damp cock into her quivering pussy.
“Ahhhhhh! Mmmmm! Ohhhhhh Colin, you’re so strong!” Traci screamed in ecstasy as he penetrated her.
Colin kneaded her breasts as they swelled up in his hands, her nipples widening as her cup size hit a nice healthy 45E.
“Ohhhhh! I love you! I looooove yooooou!” Traci moaned as she lovingly gazed into his eyes.
Sam walked in with her bottle of Jack right as Colin and Traci screamed “AHHHH... AHHHHHHH! AAAAAAAAAaHhhh!!!!”
She stared at her boyfriend and cum drenched sister blankly before closing the door.