That night at home

He got to his car intact and drove home, though his hard-on was still raging as his mind replayed his delicious encounter with Rachel. He couldn't believe that, under the guise of 'scientific research', he had just fucked one of the most fuckable senior girls. And she was a virgin. And she wanted to keep 'researching'.

John grunted at his sister, Julie, when he got home, making sure she couldn't see his tented pants. She waved from the easy chair in the family room, without looking up from her book. He was still a little lightheaded from the ****, so he grabbed a cookie from the kitchen before heading up to his room. He found clean clothes, finished the cookie, and headed to the bathroom across the hall for a shower.

By the time he stepped in the hot shower, his cock was almost painful from being erect so long. He picked up the conditioner and started polishing the candlestick. With a cock as large as his, he needed both hands to jerk off.

As he fondled his massive pole, using the conditioner for lube and running his fingers up and down its length, he imagined Rachel in several positions, including on her knees sucking him off, on top of him cowgirl, beneath him in missionary, and on all fours taking it from behind. Finally, he grunted and came on the bottom of the tub. His cock went limp at last. The water washed his residue away. The rest of his shower went uneventfully.