Peter opts for a position where all the guys can move

Hank nodded to Sally. He tipped his head toward Peter. "Your party, Pete, what do you think?"

"Mom, I want to be able to move when I'm in the middle," Peter said. "So either standing or on our knees. Gary, you'll be in front of me. What do you think?" He looked up at Gary, whose cock was still wet from Peter's mouth.

Gary looked at the friend he'd just offered his butt to. "Standing up," he said. "I want to brace myself." Something solid seemed called for, with Peter thrusting into him, and Dad thrusting into Peter.

Sally pointed. "How about that wall." She grinned. "Better view from the side, sitting here in the window seat, and space on the other side if anyone wants to give you boys a hand."

And that was that.

The onlookers and well-wishers arranged themselves. Jim settled down to watch his son get to be the middle car in the boy train, between Hank and Gary. Jim had been in the same position often enough, with Hank entering him from behind, sometimes with a fellow in front taking his cock, though more often with Veevee or Sally.

Sandy leaned close, speaking quietly to Peter while Sally helped get her son ready to be the middle man, getting his slim hard cock sheathed and lubed.

Veevee stepped up to do the same for Hank, giving her husband a little hand stroking to stiffen him up before rolling on a fresh rubber and lubing it generously. "I love watching your dick in action almost as much as I like feeling it," she said.

Next to the wall Sally had pointed to, Bernie and Gary stood close together.

"Thanks for helping me get ready earlier," Gary told his girlfriend.

Bernie smiled and nodded. "I was really hoping I'd see this," she said. "You and Peter are really cute together."

Gary gulped. "Okay," he said.

"You want me to stick close?" Bernie asked.

"Yeah, if you could?" Gary said.

Bernie moved to Gary's side, away from the window seat where Jim was sitting. She gave Gary's cock a gentle squeeze. It grew and hardened in her grasp. "I'll hold on unless Peter wants to grab you," she said.

"Ulp," Gary said. "Yeah. Sure."

Bernie laughed.

"You ready, Gary?" Peter asked.