Her guts clench painfully around the impossibly large intrusion in her. She sighs once they pass, kneading the ground as her stomach eases once more. It’s been a hassle to keep her poor kit inside her, but her sodden cunt demands it, aching with her need, her desire to keep him lodged in her bowels. She feels him sink that bit deeper, his hitching sobs stuttering around mawfuls of shit. She’s been backed up for days, of course, her belly growing rounder and heavier the more she remains packed. It hurts. Her overstuffed intestines cramp, her broken open hole ruined and aching constantly. She’s an adult cat, albeit smaller than average, but her poor kit must be infinitely worse off given his own size. She can only imagine how his own anus is faring, guessing his pelvis had been filled to the limit, his guts stretched past their natural limit until they’re broken open. She feels him writhe and cry inside him, just like when he was born, always sensitive to the world. He doesn’t love it at all, but she’s never been so horny in her entire life. It’s easy, she thinks, trotting up to a bipedal dog, belly swinging. All she has to do is purr, rub her cheek on his leg, let him pet her for a bit before turning around and lifting her tail high, revealing her collapsed, gaping asshole. They always gasp, their cocks always shoot right up, pressing tight against those pesky clothes. She’ll half-heartedly run off into the bushes. They always chase after her. Maybe they often think she’s pregnant, who knows. In a way she is. The dog grabs her around her massive belly, easily picking up her comparatively small frame. She coos a little disappointedly; this one’s cock lacks a knot, but it’s long and fat and huge. Often she coerces bipeds with her son’s ass half out of hers, but he’s too far deep inside, well into the colon out of view. Her intestines clench and tighten as she’s lifted in the air, leading her to moan raggedly. They’re never gentle, thank the stars. They see her ruined ass and try to bury as much cock inside her at once. Ah, some day she must find two of them, see if they can break her anew. This one’s doing just fine, though. Her ass is dry, barely lubed with cum and natural ass juice, but it’s never really enough. The large member strains her ruined hole, stretching it to its limit until the cock is struggling to enter. Her belly already begins to bulge and stretch, her son thrashing inside her. That gets him another stomachful of shit, the movement only encouraging her insides to constrict. Between feeding her son until his own stomach fills and the cock being forced into her ass, she’s absolutely miserable. But she can’t get enough. Every thrust in, her tract cinches around the cock, every pull out, they begin to prolapse from the friction. Her belly swings back and forth and she screams. The cock is only a few inches in, but a few inches is so much to a cat her size. The dog slows his pace, focuses on forcing her down the rest of the length. It’s a grueling, slow process, heeded by her son. She knows when the cock finally pops into his broken ass. It slurps inside, this sucking, throbbing motion, forcing him to scream and thrash more. The dog above her gasps, tightens his arms around her, and forces her down more. She doesn’t even make a noise when their hips connect. Neither does her son. Her insides are frozen still in horror from the devastating attack, her son twitching as he throws up the week-old shit clogging his throat. Ahh—! When the dog finally pulls out, her son is constricted so tight around his cock he doesn’t move at all, instead becoming an extension of the cock fucking in and out of her. It rips open her sigmoid bend, stretching her guts as they’re half pulled out of her fold over fold. The biped can hardly move while it happens, too much prolapse stuck inside her hole, her son blocking the passage, too tight for the dog to properly thrust in and out. Still he manages, forcing her hips down against his before yanking her up far too fast. She heaves with every thrust, her son bashing against her full stomach, shit churning in thick clumps up and down his throat, soaking him in the mess. Every time the dog pulls out, challenging the (lack of) tightness in her hole, her son yanks and batters against her anus. It’s awful, it’s horrible. It hurts so much, the constant desperate need to shit forcing her body to push out something it has no hope of achieving. The painful stretch of her intestines going taut, weakly and uselessly clenching. The cock inside them throbs, squished at the cinch of his hole, forced to stretch until his whole body warps around it, failing pitifully at keeping it out of him. Her cunt is sopping wet, her bladder clenching and forcing her piss out every pull out. The dog doesn’t seem to mind, plowing into her as deeply as it can, the bulge visible past her own belly. The dog’s arms tighten around her again, hugging her massive, writhing body to his own. He keeps his entire cock, just longer than the size of her torso and certainly thicker than her son’s body, embedded inside her. Her guts have no hope of ever pushing the thing out, but stars do they try, and does it hurt. Her eyes roll, her legs kick fruitlessly. She wonders if her son is choking around the cock in his throat or if his body is too used up by now. The cum pummeling her insides comes straight from his mouth, hardly any being deposited inside him from the length of the cock alone. It’s thick, log-like with age stuck churning in heavy balls. Her belly jumps with each pulse, growing rounder and tighter. Her stomach growls and aches, the pain nothing to her straining hole, spread too wide around a cock far too thick. When it pulls out, multiple wide inches of her prolapse sucks on the shaft. Despite the anal slime and precum, there’s too much friction for her tight intestines to want to let go of it. Eventually, her son travels down her tract, catching on her bend and taking that with him. For a terrifying moment, she thinks her son is going to leave her. He catches on her anus, stretched around her large prolapse until he fills the sock too. Fortunately he remains stuck, suckling on the cock wedged in his ass. The dog scruffs her with one hand and pulls her with a hand across her chest with the other. Still, they remain stuck around the cock, still hard and massive. There’s another deep slurp-glorping noise behind her, what must be her son’s own anus being pulled apart. He wails inside her, body trying to curl into itself as it tries to force the cock out. The ring of his prolapse catches on the flared head of the cock, seizing around the underside. A gush of cum is shat from his ass when it finally pops free with a scream from him and a moan from her. But it’s just that, a gush; the rest of it deposited too far into intestines too broken for it to come out. She’s unceremoniously dropped to the ground, right on her belly. It forces more thick, dry and digested shit back down her son's throat. She lays there for a while, letting the cramping rock her body. After the dog has left, she feels a log of shit clog her son’s anus, lubed enough to travel through him, twice digested, but too big to be expelled from his prolapse.