Just the two of us

Sally finished her slow twirl and turned back round to Peter, giving the dildo a familiar stroke.

"May I invite people in to watch us?" she asked.

"Just the two of us. This time," Peter said.

"All right, then," Sally said. She wiggled her shoulders and grinned. Her small tits bounced. The dildo jiggled. "I'm so excited!" she said.

Peter laughed. "Mom, you look silly," he said.

Sally shook her head. "Peter, what do you think sex looks like? Of course it looks silly. If it's good, anyway."

Peter looked off to the corner. "If you say so," he said.

"I do say so," Sally said. She arranged the towel in the middle of the bed with the lube in easy reach. She patted the towel. "C'mon. Knees here. Hands here."

Peter followed her directions. She moved his knees around, adjusting his height.

"There, perfect," she said. "Does Gary kiss your ass?" she asked.

"No, never," Peter said. His erection sagged.

"Too bad," Sally said. "How about Sandy?"

"I, I kiss hers," Peter said. "She likes it a lot. Sometimes she uses her finger on me."

"Do you like to touch her ass when you're fucking?" Sally asked.

Peter swallowed. "Yeah, I like that a lot. Sometimes I put a finger or thumb inside. She likes that." His erection firmed up again, swelling down from where he knelt on all fours.

Sally laughed. "Like father like son," she said. "All right, let's get going." Sally kissed Peter's balls. His cock pulsed, bouncing up. She stroked lube along his shaft. "Mmmmm," she sighed. "So beautiful." She kissed above his balls, on the prominent rib of his cock root. "So hard. Okay, wet wipe next." She wiped his anus with a disposable damp wipe and blotted with a little towel. "What a pretty little hole." Sally kissed it.

"Ooh!" Peter responded.

Sally chuckled, kissed it again. It twitched, pulsing under her lips. She opened her lips and licked with her tongue tip over the tight little crinkles.

"Oh!" Peter said. "Wow."

Sally added another smacking kiss. "Thought you'd like it."

"Yeah," Peter said. Sally laid down some more licks. "Oh, whoa, whoa, whoa, wow."

Sally chuckled. "So do I. But let's get you really ready."

Peter heard the snap of a latex glove and the bubbling squish of a tube of gel being squeezed.

"Ooh," Peter said. A cool glob of thick lube touched his ass. He tightened down, then relaxed.

"Push out at me," Sally said. "There you go, you know what you're doing." Her finger slipped inside him. "I'll just make sure you're really slippery. I'm wearing one that's about as big as Hank. Or Gary, rather. But it's a little harder, so I want to make really sure." She dabbed more lube round his opening, then more inside, this time with two fingers. "That's right, that's right. Oh yes. This is going to totally work. Are you ready, Peter?"

"Yeah, I'm ready," he said.

Sally withdrew her fingers, put aside the lube and stripped off her glove. She settled behind Peter and adjusted her own angle. Peter felt the end of the big dildo prodding his anus, then settling in for a gentle push.

"Push out at me baby, let me in," Sally said.

Peter bore down, pushing out at the pressure. Opening himself. As the firm, cool silicone penis penetrated him, he groaned aloud. "Ohhhhhh. Oh whoa whoa whoa, uhhhhhh!"

"Just holding still now," Sally said. "How's that feel?"

"Really hard. Like if Gary did it to me first thing in the morning," Peter said.

"Let me know when I can move," Sally said. She held onto her son's hips, not moving, as he adjusted to the thick dildo penetrating his ass.

Peter nodded, the back of his short-cropped blonde head bobbing in front of her. He took a few deep breaths. "Okay, slow."

"Slow," Sally echoed. She started thrusting slowly, the dildo sliding through Peter's tight anal ring. She listened to his breathing.

After a few minutes of slow, steady thrusts, she reached down to feel his penis. His balls were tight and his root and shaft were still hard.

"You liking this, baby?" Sally asked.

"Yeah, mom, a lot," Peter said. "You're really good at this. You can go faster."

"I will," she said. "I really hope we get to do this at a party, but if we never do...this is special for me. Magic."

"Oh Mom," Peter said.

"Okay, I'm gonna speed up now," Sally said.

"Yeah, do it," Peter said. "I'm ready."

"This one's got a little vibrator built in. I like it a lot. I'm gonna turn that on first and see how you feel."

Sally clicked a little switch. The dildo hummed a low tone in Peter's ass. Waves of vibration flowed out from his ring and the soft flesh inside.

"That's working," Peter said. "That's really good."

"Let's come together, baby," Sally said. She started thrusting again, working up a faster speed now that Peter was ready.

Peter made a little sound with each thrust, a pant or a groan. His ears went from pale to bright pink as he took his mother's vibrating dildo up his ass.

As Sally fucked her son from behind, fast and deep, she saw Peter's back tense up. His breathing got ragged. She thrust deep inside and stopped. She reached into the harness. With one hand she pushed the vibrating base down her mons and held it tight against her clit.

The vibrations worked their magic through the silicone bridge that connected their bodies.

"Oh mom, gonna, gonna..." Peter said.

"Peter, yes, yes, YES!" Sally said.

Mother and son cried out together in orgasm. Peter shot again and again onto the towel. Sally's body tensed up in a tight knot of pleasure that burst, tightened, and burst again.

When Peter's sounds had more discomfort than pleasure, Sally snapped off the vibrator. The two of them eased down to rest on their sides, still connected. Sally gently caressed Peter's penis, wet with semen and softening after his climax.

"We have to do this again," Sally said. "Party or no party."

"Yeah," Peter said. "Good. Intense."

"What do you think?" Sally said. "Taking this to a party?"

"Not yet," Peter said. "Just the folks here." He swallowed. "But...I'd eat you."

Sally laughed. "I'd love that. Pussy and ass, like you do Sandy. It's a date," she said.

"Mom," Peter acknowledged. "Okay."

Somewhere below them, the ship's engines vibrated, echoing the buzz that had brought them to climax together.