Hank watches Gary jack off

Hank closed his eyes for a moment and leaned against the very warm wooden wall of the sauna. He could still hear Gary's breath, coming more quickly and shallowly, and a fainter sound, Gary's hand sliding his foreskin on and off his cock head, getting louder as the pre-cum started oozing from the tip.

"Mm-hm," Hank acknowledged Gary. "All right then." He opened his eyes.

Gary didn't respond, lost in his own world of sensation and erotic imagination. He sighed, low and quick, like a breathy grunt.

Gary's penis was harder, longer, broader in the head than when Hank had closed his eyes. Had it only been a minute? Hank had better catch up.

Hank started stroking his own cock, watching Gary's technique with approval. His son used a good steady rhythm, not too hard over the head, and wasn't going to make himself sore.

Hank rather enjoyed watching dicks in action, often Veevee getting filled with dick at the swinging parties Jim and Sally hosted. The interrupted sea cruise had been a small group of party regulars getting it on every which way, guys and/or gals in twos, threes, and fours until the trip was cut short.

Gary twitched a bit and sighed, shifting his butt on the towel-covered sauna bench.

Hank stroked harder, wondering how long Gary's party had gone on before he and Veevee had walked in and caught Gary playing host. Gary's sex party crew had ghosted out quickly. Was Lil his second partner after Bernie, or had Gary had a full dance card? Maybe gals and guys. Gary had secretly been his best friend Peter's sex partner, so Gary could have nailed a guy earlier in the party.

Hank had seen plenty of Peter naked on the cruise, so it was easy to imagine what it could have looked like.

Gary moaned, his cock head swelling. His eyes squinted more tightly shut, and his jaw tightened. "AhhhhAH!" he groaned as he caught his climax, shooting a thin lace of seed across his belly.

Hank grinned, stroking hard and fast to catch up. His hips jerked, and he shot his first pulse of seed along with Gary's third.

After a few minutes slumped on the bench in the slowly cooling sauna, Hank helped Gary up.

"Missed a spot," Hank said, pointing to a stray blob that Gary should mop up with his towel.

"Thanks Dad," Gary said. "That helped." He smiled, then yawned, looking pleasantly sleepy.

"I needed that too." Hank gave Gary a friendly slap on the back. "Now c'mon, off to bed."

Hank held the laundry basket open for Gary to dump his towel in, then followed Gary up the stairs to make sure he made it to bed.

Hank shrugged, snorting with a little laugh at Gary's closed door. Putting Joyce Bernstein's Free to Masturbate in action tonight. He shook his head. Seemed like the logical thing to do, taking a leaf from Bernie's mom's sex ed advocacy book. He yawned and headed down the upstairs hall toward the master bedroom, where hopefully Veevee was sleeping the sleep of the shameless.