The next day dawned as Dexa woke up in his bed with Graax next to him, sleeping soundly. Well, not his bed, but his skin suit's bed. The two of them were back in their suits. Last night was a blur, he knew it happened because he felt very satisfied, but he couldn't remember for the life of him what exactly happened to the letter. With a glance to the clock, he saw it was 5 in the morning. PHHBBBBTTTT! A loud fart rumbled from the backside of his lover, making Dexa growl with pleasure. He shook his lover awake, Graax turning round. "What?" He asked, his smaller frame shifted as he turned. "Nothing, your gas exchange just turned me on." Dexa palmed his skin suit's crotch, taking out his dick. "Ohh, really? You like that my tighter skin gives me gas?" Graax giggled, pulling his lover in closer. "Oh, yeah, you know I love it when you fart loud and proud. Makes me so weak for you. I love when we fuck in suits-." Dexa's green dick began filling up the empty sack of skin as it hardened, throbbing and green. As it filled, Dexa let rip, the suit adjusting to the difference. BRRAAPP! "Ohh, fuck, that felt so good!" Graax just smirked, seeing his husband in a trance. While his eyes were closed, he went in for the first lick, dragging his tongue over the very tip, making Dexa gasp.

The two changed positions, with Dexa laying on the bed with his legs up, Graax servicing his cock and ass. Every time Dexa farted, which was pretty often, Graax would sniff it up and start licking like a good mate. PHHBBTTT! FAARRRT! PHRRR!! It was pure ecstasy. "You like my gas exchange, huh? Fuck…" Dexa moaned. "I need to be inside you." Graax smirked, coming up from his lovers' massive ass and planting a kiss on his lips. "You'd better get me ready, then. You've never fucked me in this skin before, he feels pretty tight back there." Graax giggled, laying on his front, presenting his smaller but still bubbly butt, wiggling it. Dexa smirked, "You know I love loosening up these suits for you. We'll have to get you a new one in a couple months." He put his mouth up to Graax's ass, burying his face between his hairy cheeks and beginning to lube it up with his spit. As soon as his tongue met the tight hole, Graax purposefully let out a long, loud fart. FRRRRTTTTTTTTTT!!!! Dexa went mad with pleasure, sniffing it deeply into his body and eating out his lover with such vigour that his jaw was starting to hurt. Graax moaned in pleasure, the feeling of the gas exchange mixed with that of Dexa tongue-fucking him was similar to the thrill of a hunt.

"I'm ready for you now..!" He managed to say, tongue lulling out. Dexa cracked his jaw, licking his lips. "I enjoyed being down there far too much… heh." He grabbed his dick, lining it up with Graax's spit-lubed hole. As the tip pushed inside, a loud fart fought back. PHHHBBBBBTTTT! Dexa kept going, eyes rolling back in pleasure as he bottomed out and pushed all the way inside.

As Dexa thrusted in and out, Graax kept letting rip. Dexa's thrusts were also accompanied by his own farts.

PHHBT.

FRRRTTTT!

BBBRRRRTTTTT!

PHHHBBT!

FRRP!

"Oh, you feel so good! Fuck! For the love of Clom, never change, Graax Dall Niln!" Dexa bent down, kissing Graax on his neck. PHHRRRTTTT! "Oof, we need to do a role-switch soon, Dexa. Your ass is begging to be fucked with that gas exchange of yours!" The two pant, Dexa moaning as he gets closer and closer to releasing inside of his husband. "Fuck, fuck! Give it to me!" Graax was also close, stroking his own stretched skins' dick, which was smaller than Dexa's but still of a good size. "Dexa, I need to release!" Dexa just chuckled. "From which part?" He teased. "Your farting ass just turns me on so much… I'm so glad this suit is so tight on you…" Graax couldn't take it any more, farting out a barrage of gas and green cum onto the bed.

——

Meanwhile, back at Park Vale, Dan was prepping for his lessons. Living at the school was efficient enough for his fake job- if only he took it seriously. His communicator began beeping, and he spun around to answer it. "This is Gaass, receiving."

"I'd like to place an order for a skin suit- multiple, actually. My clients are heading for Earth. Figured they could be useful to our plans." Ah, yes, the dispatcher. A Slitheen who worked alongside the others back on a space station, directing Slitheen to Earth to assist in his business dealings. Gaass took out a pad and pen, writing things down. "Right, how many do you need? What sizes?" The dispatcher stalled for a moment. "Three total- two bigger adults and one 18 year old. All male. I've been reading up on the manifesto you sent- you could really get these two in the kitchens? Start fattening the rest of the staff and students up?" Gaass nodded, then realised he had to respond. "Ah, yes sir. That means more suits, and more money for your pocket." The dispatcher laughed. "Right, I'll pass along the teleportation coordinates. Am I right in saying Dexa will meet them there?" Gaass stumbled over his words, "ah, um- well… I'm not actually sure where Dexa is. But once I contact him, I'll let him know the situation, sir." The dispatcher just growled. "Don't let me down." And the call was over. PHHHHVVVVTTT! Gaass ripped a fart, moaning. He immediately tried to contact Dexa, thinking that Graax would also be with him. Kist went home last night, so he would likely be back this morning.

"This is Dexa- and Graax- we are receiving."

"Hello, brothers. I just got off the phone with the dispatcher. He's sending three new clients down later today, he expects you to meet them Dexa. Two adult males and an 18 year old male."

"Ahh, that's perfect! I have an 18 year old in my sixth form class- Callum… I already have him putting on weight. I'll have to speed up the process." Dexa smirked.

"And I can help with the other two- where are they going?" Graax questioned.

"The kitchens. The dispatcher read our manifesto- we need two Slitheen in the kitchens making the food. None of the male cafeteria workers are big enough…"

"I know Joe and Frank really well- at least my suit does. I can seduce them both into gaining some weight… might take a while. Those other Slitheen happy to stay down in the bunker for a while?" Graax said, looking to his husband for approval.

"As long as you keep me informed, you can do what you like with them, naughty." Dexa giggled.

"Right! The plan is settled. Dexa, you sort out their arrival and prep the 18 year old's skin suit, Graax you prep the other two suits, and I will continue acting on your behalf, Mr. Roth, and start hiring a new science teacher once Mr. Bell is declared missing."

"Sounds good, brother… will Kist be involved in the plan?" Dexa asked, seemingly farting in anticipation for the answer.

"Of course- he is one of us. I'll find him something to do. Your ass seems to miss him…" Gaass giggles, his brother amusing him.

——

Later that same day…

Dexa had met the three Slitheen; Keess, Grors and Bren, and was now teaching his sixth form class. He had a particular eye on Callum, and the end of class was nearing, so the science teacher was gassy with excitement. "And that almost brings us to the end of our class on the cardiovascular system-" BRRRPPT! "The only thing that's left is-" BRRRUUUMP! "Its function in the wider… oof…" BRRRRPPPPTTTTT! "Body!" And with that, the bell sounded. "I expect to see fully completed essays on the cardiovascular system on my desk by Friday. Those who don't will face severe consequences… ah, Callum, stay behind will you?" Mr. Roth rubbed his stomach, the Slitheen inside squirming. "Oooh!" Students jeered at Callum having to stay in the stinky classroom. Once everyone had left, Mr. Roth sighed. "So, Callum… I just wanted to talk to you about what we discussed yesterday?" Callum's face brightened. "Well, sir, I've looked at a fattening diet that's suggested for skinnier people, but, well… I'm not exactly skinny. Do you think we could take a look together?" He smiled. He almost had a crush on his favourite teacher, the way he was going out of his way to help him! "Of course. Sit down, let's go through it…"

Time passed, and the meal plan was modified. "Ah- one more thing- you must add this to each meal! It makes it taste even better- you put on weight a lot faster too… how do you think I got to this size?" Mr. Roth suggestively walked over to his desk, opening the drawer and taking out a small bottle. Callum couldn't read whatever language was on it- it was unlike anything he'd ever seen. He took it willingly.

"Thank you, Mr. Roth!"

"Please, call me Jake. We're much closer than just teacher and student now. Just don't tell anyone. Good luck with your journey, and check in with me tomorrow." And as the door closed, Dexa spoke into his communicator. "This is Dexa. Sauce distributed to suit #3."

——

As Callum got home, he walked in to an empty house. Strange, his parents would usually be home by now. He stared into the mirror, looking again at his normal build. He hoped it would change soon. He just wanted control over his farting problem. Little did he know…

Hours went by and his parents still weren't home, weren't answering their phones. He decided they just needed to work later, so he began making some food. It was then he remembered the sauce that Mr. Roth had given him. He tried using Google translate to identify what the sauce was, but to no avail. Even Google was at a loss. "Fuck it." He said aloud to himself, opening the bottle and spreading it over his food. It smelt divine- he wasn't sure what it was, though. It tasted even better, like explosions of spice and a tang of sourness. He rubbed his stomach, farting nonchalantly. He did admire the way Mr. Roth would constantly rip ass- he wished he had that confidence.

——

It was now 11pm. Still no sign of his parents, Callum decided to get out of bed and look round. He got distracted when he looked down and realised he'd seemingly outgrown his pajamas in only a few hours. He quickly ran to his mirror, admiring his new shapely curves. He was bigger, sure, but not big enough yet. He had to get to Mr. Roth's size, that's what he told him. He continued down the stairs, when he felt his stomach rumble. He was hungry. He quickly ran to the kitchen, grabbing that sauce from the fridge and squirting it all over the sandwich he had made himself for lunch the next day. He scoffed it down, patting his belly. "More.. more…" he didn't realise how ravenous he had become until he seemingly awoke from his trance- he had eaten everything in the kitchen- all the food, drank all the drink. He was twice his size now- his stomach had some heft to it. He couldn't wait to show Mr. Roth- no… Jake. His teacher felt like his mate, one he wanted to impress. He trudged back upstairs, still forgetting about his missing parents, and went off to sleep once more…