It's already night, 9 o'clock bedtime for the children. Cream Heart is tucking in her son Button Mash, who is still energetic enough to fall asleep.
Mash: Mom, I don't want to go to sleep.
Cream: well, you will have to do it, you have to go to school tomorrow.
Mash: but I can't.
Cream: find out how, if you can't, i can bring you a glass of hot milk.
Cream Heart kisses her son's mouth and turns around showing her big ass with her heart mark and a bottle on both buttocks, with the tail raised and the huge balls dangling. The stinky smell of Cream Heart hits Button Mash's nose, who smells the scent as always when he's around him.
Cream: see you tomorrow sweetheart.
Cream Heart walks off shaking his big heavy soft ass with every step, turns off the light and closes the door. 2 hours pass and Button Mash is still unable to sleep, he only thinks about the stinky ass with whom he lives, he is looking at the ceiling with a big erection that lifts the sheets while he throbs and fills them with precum.
Mash: MOOOOOOOOM!
Cream Heart enters the room and asks: what's wrong? again got a spider?
Mash: no, I just can't stop thinking about your gas and your stinky ass. Could you help me, I already cum 4 times and it is still hard.
While Button Mash says that Cream Heart is walking to the side of the bed.
Cream: Okay, but tomorrow you'll have to suck it off me when you get back from school.
Mash: but tomorrow I was going to go to my best friend's house, I want to smell his farts.
Cream Heart turns around again, this time putting her ass closer to Button Mash and then she lets out a loud fart that knocks the covers to the ground and pushes Button Mash's hair next to his erection sending several drops of precumm and the beanie that he always wears.
Cream: so I guess you don't want to put your face on this stinky ass do you?
Mash: yes i want it yes i want it, I'll suck it back if necessary but i want to have that ass on me, it's much more stinky than his.
Cream: I thought so, I always want to give you my milk since you were a baby, I still remember how you cried if I took my dick out of your ass, it is still as soft as before * Cream Heart takes a step back and lowers her ass leaving it inches from the Button Mash * face but now it's my turn to milk you.
Button Mash can't take it anymore, he grabs her mother's hips, pulls her, putting her fetid ass on her face and he starts to smell every inch of the stinky yellow and soft ass that she has sitting on the face of her.
Cream: wow wow wow, let me settle in before.
Cream Heart runs her paws over Buttom Mash leaving her hooves on the pillows and her balls on her son's chest and stomach. Once settled in, Cream Heart releases all the gases that she endured throughout the day.
Her farts enter Buttom Mash's nose without any problem, reaching her lungs and burning a little inside her from the strong and rotten smell. Buttom Mash inhales until he can no longer while with his hooves he begins to masturbate while he also farts from time to time, which come out without any sound because his mother has made sure that his anus is never be closed.
Cream: you relax, I'll take care of that so you can finish faster.
Cream Heart closes her eyes, lowers her head with her mouth open to suck on her son's erect penis, but feels a strange taste, opens her eyes and realizes that she was sucking on her own penis, she takes it out of her mouth, put your penis aside and now if you suck the right penis.
Her warm, wet tongue along with her stinky farts make the little boy come in a few minutes filling her mother's mouth and throat.
She swallows and ends up with a bloated stomach as the gases keep coming out. As he takes her penis out of her mouth, she gasps a little as her mouth drips semen onto her own penis, balls, and Buttom Mash's stomach.
Buttom Mash's penis is still just as erect, throbbing and dripping semen on the bed. He does not stop licking her Cream Heart's anus and smelling her gas, some with his mouth pour to swallow the gas.
Cream: still hard?
Cream Heart rises next to various gases that Button Mash sniffs, raising his head trying to lose them as little as possible.
Mash: with your farts so putrid it's hard not to be like that. What do you eat to make them smell so bad?
Cream: I'll fart in your face until you guess it yourself. But for now, what we came to.
Cream Heart turns around, slapping Buttom Mash with his penis by accident (he left a few drops of precum on Button Mash's face, which he licked with relish) and puts his gaseous ass on his hard, veiny and juicy penis. She is putting it in easily, the gases open her ass and her penis is already lubricated by cum and saliva. It is not the first time that Button Mash is the active one but even so, Cream Heart's anus is too big for it to be opened by Button Mash's penis.
The balls bounced up and down, hitting the boy's stomach making a clapping noise 2 times with each sit-down, the other sound is from Button Mash's balls hitting the stinky and sweaty ass of Cream Heart that doesn't stop farting. even with the huge penis inside. With every gas she releases, his buttocks jerk, vibrating on the little pony's penis.
Button Mash can see how Cream Heart's stomach, inflated with his semen, shakes like a water balloon (the best comparison).
Another full hour of anal sex, body odors, sweat, moans, incest and above all, many, many farts, it ends as they had done many times since Button Mash was a little baby (but this time backwards), he was already sucking penis as an expert before knowing how to crawl. Cream Heart's stomach inflates a lot more to the orgasm of both of them at the same time, filling the bed, the sheets, blankets, pillows, walls, ceiling, floor and Button Mash from the waist up. And from the waist down, he also fills himself with his own cum that is shot out by the gases, which despite the large amount that came out, still inflates more than what comes out.
When Cream Heart feels that his son has finished cumming, he slowly gets up as his farts follow. Both of them have already lowered their erections and are tired from all the action, Cream Heart finishes taking his penis out of her ass, which lets out much more farts, smearing more semen than there was before, so much that the semen is already coming out outside the room below the door.
Mash: thank you, tomorrow you will have the oral you wanted.
Cream: I hope so.
Cream Heart turns around again putting her ass on Button Mash's nose and releases one last flatulence much stronger than all the previous ones, shooting a large jet of cum on her face and leaving the child asleep due to the pestilence (not the first time Cream Heart puts her child to sleep with their farts)
Cream: sleep well.
Cream gives Buttom Mash one last kiss on the mouth and he farts more, leaving a trail of semen in his wake. He has more than 500 liters of semen inside but he can walk like nothing, he has endured much more