My fingers were happy, but my penis was feeling neglected. I paused for a minute, took my fingers out of Lila's vagina, and picked up the bottle of lube from the toy table. I ran some over her anus and worked it in with a finger, then greased up my cock. I pressed the head of my cock against her asshole and reached under, a bit awkwardly, to slide two fingers back in her vagina. I pressed my cock a bit harder and it slipped, shooting up her asscrack between her cheeks.
Damn. One job at a time, Jason, I said to myself. I took my fingers out of her pussy and used my hand to keep my cock aimed while I pressed. This time it started to force her sphincter open. I kept up the pressure, and marveled at the feeling as it slid slowly, centimetre by centimetre, into that warm, tight sheath, the tight grip of her sphincter sliding slowly up my shaft until I was buried to the hilt.
Once I was safely planted, I reached down to her vulva again. This time I didn't bother twisting awkwardly to massage her G-spot from the inside out. Instead, I just flicked my fingers over her clit, a much more convenient target from this angle. Then I started thrusting slowly, feeling the tight ring of her anus sliding sensuously up and down my shaft.
I gradually sped up my thrusting, remembering to keep my fingers moving in her moist pussy and over the engorged bud of her clit. I could feel the delicious clenching sensation of an incipient orgasm building in my abdomen. I suddenly realized that Dad was synchronizing his strokes with mine so that on each in-stroke, instead of being jerked back and forth on the bars it was tied to, Lila's body was held tight between two thrusting penises. I didn't know if I would have had the concentration to do that myself. All I could think about was the mounting pleasure of my cock going deep into Lila's body with each stroke. It was Dad who was watching me and timing his strokes with mine.
Lila was starting to make strangled squeaky noises whenever Dad pulled back so she could snatch a breath. It sounded as though she was trying to build up to another orgasmic scream, but it was being blocked by the thick penis filling her mouth and throat. Dad must have realized the same thing. He pulled out of her mouth and just let her work up the orgasm we both knew was coming.
A minute later, the squeaks ran together into a mighty scream, this time unimpeded by a gag. I held my cock all the way up her ass and felt her sphincter clamp tightly around it as her body spasmed with pleasure. I kept my fingers still in the moist folds of her vulva, holding her mound and letting the sensations work their way through. For the first time, I really knew how good it can feel to participate so closely in another person's pleasure. The feelings seemed to reverberate back and forth between me and Lila, intensifying with the action and reaction.
Finally, the orgasm and the aftershocks subsided. I started moving my cock and my hand again, and Dad put his cock back in her mouth and resumed thrusting in time to my strokes. Lila was taking him all the way down her throat, just as she had me months before, and I remembered what it had felt like, being gripped tightly by those perfectly-controlled throat muscles as my balls slapped against her chin.
We spit-roasted Lila for another few minutes as I relished the slowly growing sensations in my abdomen and pelvis. Suddenly Dad stopped thrusting, grunted, and held his cock still in Lila's mouth. I couldn't see very well around her head, but I knew exactly what was happening - he was pumping spurt after spurt of cum into Lila's waiting mouth. I held my own cock still so Lila could concentrate on milking every drop out of Dad's throbbing penis.
I waited until Dad relaxed his tense face and pulled his cock out. He stepped back a bit, and in the mirror I could see Lila pressing her lips together to hold the load of cum, and then swallow. Dad picked up a cloth and wiped up a few stray rivulets of cum that had escaped her lips and were starting to run down her chin.
Once Dad was done, I started thrusting again. Without Dad's reciprocal strokes, each thrust jerked Lila forward on the bars. In the mirror I could see her breasts rocking back and forth as her body moved. Somehow that movement seemed almost achingly erotic, and I watched it with absorption as I felt my own orgasm, which had subsided a bit as I was waiting for Dad to finish, ramp rapidly up again.
Finally, my pelvis contracted with a burst of pleasure as my balls pumped great spurts of cum through my cock into Lila's rectum. (Yes, I know semen comes from the prostate, not the testicles. I didn't sleep through that part of Sex Ed. But it sure felt like my balls were squeezing themselves dry.) I could feel the pleasure hormones flooding my brain as I held my spasming penis as far up Lila's rectum as it could reach. Then I slowly slipped it out, spent.
Dad was ready with a cloth to wipe up the cum that dribbled out of Lila's anus before it started running down her legs and onto the floor. I just plunked myself down on the belt of the treadmill and panted, thoroughly blissed out.
As I came down from my overheated state, I became aware of another rhythmic noise. It was Mom, still sitting on the weight bench with her housecoat on the floor behind her, her legs spread and her middle two fingers buried to the hilt in her vagina, thrusting rapidly.
Now, I've seen Mom naked from time to time, just like Dad, and I have equal admiration for her trim forty-five year old body. Her breasts are a touch saggy now, and there's just a hint of a tummy that never got quite flat after I had messed it up, just over eighteen years ago. There were a few silvery lines of stretch marks on it, and I knew who's to blame for those as well. But it was a body that compared well with any I've seen in MILF porn.
Once, when I came home from school after a Sex Ed unit on body parts, what they did and what their proper names were, she had pulled off her pants and underwear and shown me what those parts looked like in real life rather than in a textbook line drawing. No, she didn't invite me to touch them. It was completely non-erotic. We were just reviewing school lessons, and I took it as such. She sat in a chair, spread her legs, and pulled apart her labia with her fingers so I could see as she pointed out and named everything. She had even managed to find her peehole hiding among its moist folds, demonstrating conclusively that, no, women don't pee through their vaginas.
So I wasn't embarrassed to be seeing my mother's equipment again. However, I had certainly never seen her masturbate with it. She had obviously been so turned on watching me and Dad doing our father-son teamwork on Lila's body that she couldn't wait to join in.
I watched, slightly embarrassed but fascinated as she worked her fingers rapidly in and out of her vagina, making little gasps of pleasure. She must have been doing it for a while, even though I had been too wrapped up in my own adventure to have noticed. It only took her another minute or so to work herself up to what was obviously a very satisfying climax. She didn't come out with an orgasmic scream the way Lila had, but she worked herself into a very heartfelt "NNNGGHHH!" as she went over the top. Then she settled against the weight rack, gasping.
When she'd pulled herself together, she said, "Ahh, that was good. You boys put on one hell of a show for me. You make a great team. And so do you, Lila." Lila looked in Mom's direction and smiled.
"Thanks, Ms. Langford. I've been having a good time with your husband and son. Are you ready for a turn?"
"Don't mind if I do. My fingers did a great job, but I saw what those lips and tongue of yours did for George. I wouldn't mind seeing what they can do for my pussy."
Mom went to the toy table and selected a length of rope and an anal hook tipped with a metal ball. Lila's lush brown hair was pulled back into a ponytail to keep it out of her face, and Mom wrapped the rope around the base of her ponytail and tied it tightly. She threaded the rope through the loop at the end of the hook, lubed the ball, and pushed it against Lila's asshole. It slid in easily after the stretching I'd given her, and Mom pressed it in as far as it would go. Using the loop on the hook like a pully, she pulled Lila's head back and tied off the rope. Now the aforementioned lips and tongue were tipped back at the perfect pussy-licking angle.
Mom spread her legs and positioned them on either side of Lila's head. Dad and I moved so we could watch the show - why should Mom have all the erotic visuals? We watched as Lila ran her tongue slowly up and down Mom's slit, twiddling her clit rapidly and then sliding sensuously down the length of her vulva to her vagina. She curled her tongue and pushed it deep into Mom's body - not nearly as far as a penis, obviously, but perhaps just as erotic as she could curl it and flick with it, not just thrust.
Mom was clearly getting pushed in the direction of another orgasm. Lila took her inner labia, first one and then the other, between her lips and massaged them, then sucked vigorously on her clit. Mom held Lila's head in her hands and started going "ah-ah-ah" as Lila licked and sucked. "Oh, Christ, that's good," she gasped out between pleasure noises.
