Enjoying sodomy in the shower.

Kathryn headed toward the big shower off the Walkers' master bedroom, looking for Peter and his dad Jim to tell them to get the blueberry muffins while they were still warm.

On her way through the house, Kathryn peeked into the guest room. Bryan was still asleep, the covers kicked every which way. She took a minute to admire his nude body. Bryan must have been having nice dreams. His prominent erection poked out from his sleeping form. Kathryn smiled at her lover and blew him a kiss.

She stepped into the master bedroom and round the corner to the big shower. It was a room covered with textured tiles, and on the walls were multiple shower heads, grab bars, and a built-in side seat. There was no curtain, glass door, or sill to step over, just walk right in.

Kathryn stopped in the doorway.

Peter Walker was standing side-on to Kathryn, bent forward at the waist to grip a grab bar. The shower was off, but Peter's hair was slicked down with water and his nude body glistened with moisture. Standing behind Peter, with the same lean build and wet blond hair, was Peter's father Jim. Jim gripped Peter's buttocks and fucked his son up the ass with a steady rhythm, Peter's erection bouncing each time Jim's pelvis thumped into his buttocks.

"Is this like your first time with Gary?" Jim asked.

Thrust, thrust, thrust.

"Yeah, dad," Peter said, sounding breathless. "Except it WAS our first time. Awkward."

Thrust, thrust.

Jim laughed. "But you liked it enough to get good at it."

Thrust, thrust, thrust. Peter's cock dipped and rose, drooling a drop of clear fluid.

"Oh yeah," Peter said. "Feels good."

Thrust, thrust.

"Better than Gary?" Jim teased.

Thrust, thrust.

"Oh. Yeah. Yeah. Better. He's kinda big," Peter said. "You're just right."

Thrust, thrust, thrust, thrust, thrust.

Jim closed his eyes and sighed, savoring the sensation of sodomizing his son.

"You too. Just right." Jim shook his head. "God, are we nuts or what?"

Thrust, thrust. Peter's cock dripped more pre-cum.

"Don't care," Peter said. "Mom started it."

Kathryn recalled the scene on the cruise ship, Peter sandwiched between his mom and dad, fucking and being fucked. She took a deep breath.

"Kate!" Jim said. "Here to join us?"

Jim held Peter's buttocks and kept fucking as he looked her way.

"Um," Kathryn said. "Breakfast. Sally's hot blueberry muffins." Kathryn had delivered her message, and Sandy and Sally were expecting her, but she couldn't look away from where Jim's cock was moving in and out of Peter's body.

Thrust, thrust, thrust.

Peter laughed. "Dad's starting. Uh. With my buns."

Thrust, thrust.

Jim and Peter's faces were flushed with arousal and exertion. Their hard erections and tight balls showed how close they were to coming.

Peter closed and opened his eyes. "Gonna watch. Us finish?"

Thrust, thrust.

"Or help us over the top?" Jim said.