Warnings: Sasuke being cute

Time Setting: Naruto is 4 months pregnant with Souta in this chapter.

The yoga class was for expecting omegas and their mates. It was a class which aimed to strengthen the two parents' bond through fun and modern yoga poses. That's what Tsunade had said during their last visit with her. She had recommended various types of fitness classes for Naruto to take. She had picked out her favorites and had given a general synopsis of the classes as she presented them. Out of all the choices Naruto had picked the yoga class.

The yoga instructor was an omega named TenTen. She was pregnant herself and was co-teaching the class with her beta mate Shino. For a lack of a better word they were nutjobs. In the blistering cold of December, TenTen had walked into the private studio in a flared skirt and sandals. Her mate never took off his sunglasses either. They were "eccentric" was how Naruto had kindly put it when they had stopped for a water break.

Sasuke was uncomfortable about this whole thing. Working out in front of other people, strangers, made him feel weird. He had always had his own personal gym, so he had never had to do any strenuous activity with an audience to watch him before. When Naruto had picked this class as the one he wanted to attend Sasuke had offered to hire a private fitness instructor who could do some exercises with him at home in their work out room instead. It wasn't like Tsunade had said they couldn't do that. But Naruto had refused. He wanted the experience of doing the work out with other expecting mothers. And so, since Sasuke could never tell his omega no he reluctantly came to the class.

It was fine at first. It wasn't as bad as Sasuke had thought it would be. The other couples were nice enough. Even TenTen and Shino were kind people when you looked past their wackiness. Plus, Naruto was having fun. He had a friend in the class whom he had met at a group presentation Tsunade had given at the Pediatric Center a while back. It was all going fine until they had moved on from the light weight breathing exercises and into what TenTen dubbed "daddy and mommy stretch bonding."

"You want to support your partner. Hold their hips firmly, don't let them fall, daddies!" TenTen winked. She herself bent forward as Shino stood behind her. Her mate pushed down on her back so she could stretch down to touch her toes.

"Push harder," Naruto wriggled his hips, "I'm only four months pregnant. I can handle it."

"Y-yeah." Sasuke did as told. His eyes focused on the way Naruto's back curved. The way his ass arched. The length of his sweaty nape. The scar of his claim mark that rested there...Sasuke was hard . He was trying his best to control his perverse thoughts but he was failing miserably. TenTen's stretches were all somehow erotic. They were practically sex positions! Sasuke glanced around the room. There was no way he was the only one who was getting turned on by this? He looked to Naruto's friend and his mate. Juugo was a quiet alpha while his omega Kimimaro was very chatty. Juugo was doing the exercise exactly as TenTen instructed. His hands were on Kimimaro's hips helping his omega bend the most he could while heavily pregnant. The look on Juugo's face was neutral. He had overheard Kimimaro telling Naruto that this was their seventh time coming to one of TenTen's yoga classes. Maybe Juugo had gotten used to the erotic aspect of the poses already? In fact, as Sasuke looked around none of the other "daddies" appeared to be struggling. It was just him.

Sasuke squeezed his eyes shut as Naruto's hips trembled from trying to keep the position. It was the same way they would tremble when Sasuke was fucking him. The image of Naruto's small body underneath him with his thighs open just for him sprung up in Sasuke's mind. When Sasuke fucked Naruto hard, Naruto's hips would shake in the exact same way they were now. He took a deep breath. He had to get himself under control before his scent became too strong. He didn't want to embarrass himself in front of all these people.

"Good job, mommies!" TenTen snapped back up. She was full of energy. "Next pose we're taking on is called a Support Cat Pose! This pose is going to feel amazing for all the mommies! It's going to take pressure off your heavy bellies for a little while and give you all a much deserved break." TenTen rubbed her stomach, "and I know we all need a break once in a while. The gods know I do!" People laughed. Even Naruto joined in with a giggle of his own. Sasuke did not find TenTen's joke funny. He was dreading whatever this new pose was going to be. He couldn't handle much more of this. "Now, mommies I want you to get on all fours," fuck -Sasuke cursed internally, it already didn't sound good. "and Daddies please sit crossed-legged beside your mate." TenTen got to the floor and demonstrated the pose. "Mommies take a deep breath. As you do allow your back to arch naturally. Feel the curvature of your spine. Allow it to bend to its will. As you exhale raise your back in the opposite direction. Daddies this is where you come in! Place your hands on your spouses lower back and help guide their bodies to bend as they breath. Up and down up and down," TenTen began to count.

Fuck. Fuck. Fuck. Sasuke screamed internally. Why was this so sexual? Every time Naruto would arch he'd make the cutest face. His ponytail would bob up and down too. It was so fucking cute. Sasuke could usually handle lust. He was good at controlling himself. But like always Naruto tested his limits. His hand on Naruto's back felt heavy. He badly wanted to slide it down and cup one of Naruto's round ass cheeks. The pregnancy had made Naruto thicker in some places. Luckily for Sasuke one of those places was Naruto's ass. Each time Naruto would come back up his ass jiggled a little. Sasuke was horny and now he was irritated. He did not like the fact that all these other "daddies" could see Naruto's ass shake this way. He gave in to his desire and moved his hand from Naruto's back to his ass. He squeezed.

"Sasuke!" Naruto eep'ed. He ceased his posing immediately and turned his head to glare at Sasuke. "What are y-"

"We're leaving," Sasuke whispered. He had reached his limit. He was scared he'd bust a nut by the time Naruto had to do the next pose.

"Huh, why? The session isn't over?"

Sasuke gestured his head down to his straining dick. It wasn't noticeable through his clothes but he knew Naruto would get the hint.

"Oh," Naruto made a face of understanding that then quickly morphed into a grin. "I see."

Thankfully Naruto faked a stomach cramp and they were able to leave without anyone realizing Sasuke's problem. They had barely made it to their car when Sasuke had jumped on Naruto. Right there on the car seat in the darkness of the underground car park, Sasuke pulled down Naruto's tight sticky yoga pants and fucked him. Their car was tinted so Sasuke could do as he pleased. Naruto sat back on the cramped car seat. His thighs obediently splayed open as Sasuke rocked frantically into him. His hips jerked in and out seeking release. Naruto had sweat clinging to him everywhere. His blonde bangs had twined together from the wetness of it. His ponytail bobbed up and down the same way it had during the yoga posing. Sasuke rutted until he came inside his omega. Only as the cum filled Naruto's ass was Sasuke able to calm down.

"Better?" Naruto was breathing hard. He still hadn't put his legs down. He'd be sore tomorrow from both the work out and from having to keep still in the cramped seat in a single position for so long.

"Much better," Sasuke pulled his pants up then kissed Naruto's cheek, "Sorry."

"It's okay." Naruto finally put his legs down. He began to rub his stomach. "I'm surprised you lasted in there as long as you did though."

"Huh?"

"Kimimaro-kun warned me," Naruto smiled shyly, "when I texted him that we would be coming to tonight's class he told me that during the first session its common for the daddy to get...well its normal to get turned on. Juugo-san did the same thing when they went on their first session too. So, I was waiting to see if it'd happen to you too. I was starting to worry you didn't find me attractive anymore since I've been getting so big."

"Naruto I was fighting for my life in there trying not to attack you."

Naruto laughed. "Shut up. No you weren't."

"I seriously was." Sasuke cupped Naruto's belly. "I always want you. When I see you like this." Sasuke caressed Naruto's stomach. "I want you even more. It's so easy for me to get turned on by the littlest things you do. I try hard to curb my desire since Tsunade said we shouldn't overdo it the further into your pregnancy you get. But I couldn't control myself. Especially after all those poses that woman had you doing! It's like she purposely chose the most sexiest poses or something!"

Naruto laughed, this time it was genuine. "She was a bit cookoo wasn't she?" Naruto rolled his yoga pants back up. They were tight, hugging his thighs. "But I like her. I wanna come to her next session."

"Are you serious?"

"Yes!" Naruto exclaimed, "it was fun. And I like that you came with me. I know you didn't want to come so thank you for coming anyways."

Sasuke couldn't say he wanted to go to the next session but when Naruto made such a happy face over him simply coming with him he couldn't really deny him.

"You're lucky I love you." Sasuke kissed Naruto. After sharing countless kisses their lips meshed naturally together. "We're buying you some looser work out pants if I'm coming to the next session with you."

"Thank you!" Naruto beamed.

"And if we leave early again next time don't blame me."

"Don't worry. I won't." Naruto promised with a happy smile.

Despite his best efforts Sasuke did not make it through the entire session when they went to TenTen's class two weeks later.

U guys are so amazing! The amount of kudos and comments on the first chapter was so heartwarming! T^T I'm happy u guys want more of this (^ ^) Thank u for all the suggestions so far 😉 pls don't forget to leave a suggestion for a ficlet (side pairings included)

Next ficlet will be a more in depth view into the day Souta was born stay tuned!

Also ty to my wonderful beta inluvwnaruto for editing this chapter for me seriously a girl could not ask for a better beta💕