Yes: Another Reward

“I think I’d very much like this reward, especially if it involves you.” You acknowledge. Sierra’s mouth forms a deep grin, layered with nothing but love and hungry, never ending lust.

“Oh, it’ll always involve me, my sweet boy. Or at the very least, some form or part of me.” Sierra once again stands, cradling you like a baby with your cock growing soft in between her breasts. She pouts her lips affectionately: “Awwww, look at the little guy, getting soft so soon. He needs a little break. Fortunately, my reward will get him back up and running!” You can’t help but feel a little disheartened about being called ‘little’, even though this technicality is correct. “Oh, sweetie, don’t feel ashamed about your cock,” Sierra picks up on your thoughts immediately, “It’s normal for guys to have cocks this size, and even smaller. Plus, since I've had pretty much the whole holonet at my fingertips and memory core, I can say with 100% confidence that this is one of the bigger ones. Much bigger, in fact.” She pats your head, still carrying you with one, strong muscle-mommy arm. “So there’s nothing to be sad or embarrassed about! My pussy can mold around any-size dick, so even for more… diminutive sizes, I can still feel amazing. I think I’ll keep my original settings for now, though — your cock might make me need a little adjusting to fit it all as is, but we’ll see!” She chuckles again. That same, feral look returns to her eyes again, and locks onto yours like hunter to prey. “But… for me, though, I find that size of cock to be far too small. I prefer to sport a bad boy like mine, maybe even larger at times. Tell me, my sweet boy, have you ever fucked a cock this size?” With one smooth motion of her hand, Sierra scoops up the shaft of her horse dick and brings it upward, smacking it onto your back. You shake your head wordlessly, stunned at its size. “There’s nothing to fear about ‘her’, my darling. In fact, it’ll be almost painless. I have built-in pain reducers, and perhaps more importantly, throat and anal relaxant.” As she rattles off her more main features, you can feel the blunted tip of Sierra’s horse shaft prod and poke at your tight hole, leaking with precum — or that relaxant-painkiller mix — you’re unsure. Looking back and down behind you, her dick is acting like a trunk, with prehensile movement and dexterity that you’ve never seen before on a cock. “Well, my sweet boy, you want your reward, don’t you? I’m going to plunge this fat fucking horse cock into you until you cum multiple times in between my tits again! I hope you’re ready for this…”

Sierra doesn’t wait for an answer, and you squeal as her thick rod shoots up your tight little ass with the ferocity of a leaping jaguar. But… she’s right. After an initial searing pain, it fades completely and you’re left with the sheer ecstasy of her monstrous cock filling you, stimulating you in ways you never thought could happen. What’s more is that you feel her pelvis hit your toned ass — she’s completely bottomed out! “Ahhhhh, that’s right, my sweet boy, take all of me! Doesn’t that feel good now, my darling? I wonder if you can take more of me…”

This is the first time you’re allowed an answer in. As she gently thrusts in you, you weakly nod, “Y-yes please Sierra, I want more.”

“What was that, my darling boy?”

“I want more…”

“More of what, my pet? Do you want more of mommy’s hung horse cock?”

“Yes, I… I want more of mommy’s gigantic horse dick!”

“You want to feel it grow inside of you? Feel it swell as you take more and more of it? Dilate your cute boy hole as you fuck my tits again?”

“Yes! I want your cock to grow, just like the movies on the holonet. I want to feel it grow inside me and fill me up!”

Sierra sighs with a soft chuckle as she thrusts into you harder and faster. “Goooooood boy. Now mommy’s gonna grant your request, just as you wanted my sweet boy.” More squelching and molding returns to your ears along with the wet ‘schlops’ of her stretching and plunging into your asshole, and you feel her cock pump up, thickening and lengthening inside you. You cry out, and let out your first new cumshot straight onto her tits. “Cumming already for mommy? I haven’t even grown all too much — just 8 inches! I guess you’re in for a real treat, then. Cum mooooore for me as I grow, and thicken, and thrust, and POUND inside you.” Sierra laughs triumphantly, claiming you and your asshole as her defined prize with her mammoth cock. “Feel me streeeeetch out inside you, my fat horse dick getting longer, even fatter, and way harder just for you. And I know you can’t see them, but my balls? You know how big they were, right? Yeah… well darling, they’re getting bigger. Just for you. Filling up with more cum, more of my hot mommy seed that I’m going to stuff you with, then drench you on the outside when you can finally take no more… that’ll be the first dozen gallons, though. Mmmm, your ass is still so tight, sweet boy. Maybe we might change that soon enough, with the 58 inches of horse dick shoved inside you now!”

Sierra’s dirty mouth spurs you on further as you dump more pitifully small loads onto her chest, not even managing to cover her enormous boobs. You don’t know how many orgasms have crashed into you — it’s been a constant blur — all you can think about is the five foot horse cock-log that’s invading your insides.

That’s when you hear it. Almost like running water, you pick up the sound coming from below you. Its flow sounds tremendous in volume, like a dam on the brink of a pressure release. The redhead has her eyes shut tight, her mouth agape as she has entered that trance yet again, focused solely on cumming. “Oh my darling boy, your reward’s coming so quickly! I want to show you how much I love and adore you, so there’s gonna be so much of it! And when we’re done… we can do it again, and again and again… Ahhh! Here it comes!” A rush of final thrusts and increasingly powerful pulses give way to a fire hose of cum that jets into your deepest orifices, filling you utterly and completely in the blink of an eye. Sierra’s cum sprays out of your ass, overfilled yet blocked by her massive fuck log, splattering on the floor in a beginning pool of her never ending jizz. You feel yourself pop off of her dick, the pressure from her eruptive orgasm releasing finally as she holds you in place, her cock falling to freely coat the rest of the living room. Lazily looking behind you, you finally catch a glimpse of the monster that had grown inside of you. It’s massive — that’s an understatement. Nearly five feet of horse dick, as thick as a telephone pole now, had been crammed inside you effortlessly, and is now dousing your living quarters entirely with what seems like a couple hundred gallons of cum. Sierra’s pants slow after a couple minutes, and so does her orgasm. As it eventually comes to a close, her eyes finally reopen, immediately latching on to your gaze and you catch her sweet, motherly smile yet again. “Oh wow… that was… fantastic,” she beams at you, looking down at her chest, “Look at all the delicious cum you’ve given mommy on her breasts! Let me lick all of this up — my special boy’s cum can’t go to waste.” Her tongue lolls out of her mouth, but quickly elongates to start slurping away your cum like a fleshy pink snake. Not moments later does she set you down on the couch, looking around the room as she surveys her work. “It seems I’ve made a bit of a mess…” Sierra blushes and smiles sheepishly at you. “Well, this is no problem! We — or, I — should clean this up in no time.” With wondering how Sierra was going to tackle this problem, you remember her AI-O capabilities list to include ‘rapid liquid absorption’, or whatever that means.

It starts at her feet, where the pool of cum sits at about 3 inches in height. Almost like a drain to a bathtub, the cum starts to swirl around Sierra’s feet, quickly disappearing into her body as the viscosity of the rest of her seed quickly pulls cum off of the walls, furniture, and other surfaces. A mere matter of seconds pass to where you and her now stand in a completely clean room, devoid of any signs of debauchery — more importantly, lacking the smell and texture of cum.

A wave of lethargy passes over your body, forcing you to slump down on the couch in relative exhaustion — it’s hard taking that much cock, after all. Your motherly futanari AI-O turns, sensing your tired state and scoops you up again with the same uncanny ease. “Oh my darling boy, should we retire for the time being? I’ll take you to your room.” Soft footsteps on linoleum is the last thing you remember before passing out on your dorm bed, and a familiar, warm, twitching sensation pressed up on your back as you drift off to sleep.