Watch them and carry kisses back

"Um," Kathryn said. "Breakfast. Sally's hot blueberry muffins," she told the pair in the shower room.

Jim smiled. "Thanks Kate. Second course after I finish Peter's buns," he said. He gripped his son's buttocks and thrust steadily.

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

Jim and Peter's faces were flushed with arousal and exertion. Their erections were hard morning wood and their balls were tight.

"Faster, Dad," Peter said.

Kathryn leaned against the doorway, gripping the frame with one hand as she watched the men take pleasure together. On the cruise she had watched Jim penetrate Peter as Peter penetrated Sally. Now Peter's penis bounced freely as Jim thrust his penis again and again into his son's anus.

"Yeah, squeeze me," Jim said. "Let me feel you come."

Peter's eyes closed and his face tightened. "Ohhhhh," he moaned. Peter's hips jolted. His penis stiffened upward, the head swelling visibly, and spurted ropes of white semen across the tiles.

Jim groaned. His fingers tightened on Peter's bare buttocks, still fucking hard and fast as his face was transformed with orgasm. His penis slipped out and shot a white gout of seed up Peter's back. Jim grabbed his penis and pushed it back into Peter's anus, thrusting deep as he planted his last spurts of seed inside.

Kathryn's eyes widened. Jim and Peter were barebacking.

Everything was calm for a moment. Jim and Peter stood in place, still connected, breathing raggedly as their orgasms ebbed. Jim withdrew, stepping up to help Peter straighten up. The two men embraced on shaky legs, hugging each other closely. They laughed with pleasure and release.

"God, I love you, Pete," Jim said.

"I love you too, Dad," Peter said.

"Oh Kate?" Jim said.

"Um, uh-huh?" she said. She still stood holding the doorframe, eyes wide.

"Send our love to Sally and Sandy," Jim said. "Even better, come here."

Kathryn stepped tentatively onto the textured tiles of the floor.

"I want you to send a kiss to them from me," Jim said. He dipped his head to Kathryn's. She tilted her head up. He gave her a soft, warm kiss on the lips.

"And one from me," Peter said. Kathryn turned her head to meet Peter's lips. His first kiss was warm and gentle. "That was for you, Kate. Two more to pass along." His kiss was warm and ardent. "That was for Sandy." A last kiss, with a little tickle of tongue on her lips. "That was for Mom."

"Thank you for letting me watch," Kathryn said. "You were making love."

Peter and Jim laughed again.

"Uh-yup," Jim said. "Wasn't just a fuck. Now run those kisses over while they're still warm."

"I will!" Kathryn said.

She turned to go and heard the shower start up behind her. Looking back again, she saw Jim and Peter soaping each other under the spray. Peter's penis was already erect again, and Jim's wasn't far behind.