Intense mutual penetration.

Kathryn stood in the steam and spray of the big shower room, her right hand gripping the support bar tightly as she bent over. Her big double dildo connected her to Sandy, and her left hand caressed Peter's long slim cock.

"Right...oh...oh god," Kathryn said. "This is great. I've missed you both so much. So much...oh..."

"Us too," Peter said. "Sandy's horny a lot, but just the thought of being with you takes her over the edge to insatiable. Usually I reap the benefits...now you get them."

"God I love you Kathryn!" Sandy said. "I love FUCKING you!" She tightened her vaginal muscles and thrust back toward Kate till their buttocks bumped.

"Fuck me Sandy!" Kathryn said as the double dill thrust deeper into her. She tried to hold on to Peter, but her attention was wavering to the shaft fucking her hungry hole.

Bryan grinned. Sandy held onto his arm with both hands. Bryan was Sandy's grab bar, letting Sandy thrust back into Kate. Sandy's soft pink curves glistened with wetness as the shower sprayed down, and her blonde hair was dark and sodden with moisture.

"Better hold on with both hands," Peter told Kathryn. "I'll fit myself in."

Kathryn grabbed the bar with her left hand and held on tight as Sandy thrust back into her. She pulled back and squeezed down to hold the dildo shaft, letting Sandy take it deeper this time.

"Oh FUCK!" Sandy said as the toy penetrated deeper.

Bryan laughed, feeling Sandy's hands squeeze on his arm and seeing her face change.

Kate and Sandy fucked each other under the warm spray, butt to butt, anchored by the wall and by Bryan's tensed arm.

"Which one's the thick lube?" Peter asked Bryan.

Bryan pointed with his chin. "Black bottle. Silver for silicone if you want one that doesn't wash off in the shower."

"Thanks," Peter said. He took a pump from the silver bottle and coated his cock with the thin and super slippery fluid. Peter stepped up to where Kate and Sandy were connected. He waited for an opening, hoping to get his cock pressed between Sandy and Kate's butts as they pressed back at each other.

More happy gasps and groans came from Kate and Sandy. Their slick pussy lips slid and caught on the shaft connecting them, and the rippled thickness caressed them inside. When Kate or Sandy squeezed to hold the shaft, she drove the fuck, and as she relaxed, she rode the fuck. They traded off for a while, first Sandy fucking Kate, then Kate fucking Sandy, the pleasure building for each.

Until they both squeezed and didn't let go.

Peter grinned. "Pussy arm wrestling," he said, seeing the dildo shaft had stopped sliding.

Caught off-guard, Sandy broke up in a little bark of laughter. Her grip slipped and Kathryn drove the cock deep into Sandy's cunt, thrusting fast and deep. Bryan braced, holding Sandy against Kate's thrusts.

Sandy cried out as her pussy clenched rhythmically, coming on Kate's thrusting dildo as their buttocks slapped together. "Kate I love you, fuck, fuck, FUUUUUCK!"

Peter sneaked his slippery shaft between his wife and Kathryn, enjoying a little squeeze job between Sandy and Kate's buttocks. But it was more of a tease than anything else, as Sandy's posture melted into the looseness of afterglow. Bryan supported her as she sagged forward off the dildo.

"Kate love," Bryan said, holding Sandy, "Maybe we should take this to the bed."

"Anything. Anywhere. Someone," Kate said, still hungry, still clutching the grab bar, with half the dildo sticking out from behind her. Water from the shower ran down her legs and dripped from her breasts.

Peter grinned.