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Yoongi, Hobi, and Jimin met in college and ended up being roommates after becoming quick close friends. They met through mutual friends and just clicked immediately, agreeing to find an apartment and move in together as soon as they could.
After graduating, they all had work or grad programs lined up in the same area of the city so they continued living together which helped them finally work out their feelings. They ended up in an established relationship within weeks of moving into the new post-college place and couldn’t be happier.
Jimin had noticed that Yoongi and Hobi had something going on with food even before they were dating, but he also assumed that Yoongi’s casual but progressive gain over the past five years was just that college and relationship gain.
Yoongi had sized up many times throughout their time in college. Jimin assumed the initial gain came from a good dining hall and drinking with friends when he first noticed Yoongi’s cute little beer belly.
It had continued as college went on, again as assumed college gain. It was as if Yoongi had collected his freshman fifteen every year.
His little beer belly became a soft, chubby midsection that Jimin enjoyed cuddling up on any chance he got with how comfortable and warm Yoongi became.
Jimin never felt like he could bring it up because what an embarrassing thing to be wrong about. He can’t imagine the thought of accusing them of this arrangement and potentially body-shaming his partner.
That was until Jimin heard them discussing it in bed one night while they clearly thought he was asleep. It confirmed his suspicions that the gain had been mostly intentional and Hobi encouraged that gain for Yoongi.
The idea of gaining and hearing how the other two talked about their dynamic immediately interested Jimin, like it opened his eyes to the kink instantly. He had spent so long trying to ignore the assumption that Jimin hadn’t even considered his own feelings toward it.
Jimin understood why they hid it and he was not mad about it, but he also wanted to surprise them while exploring it himself and in a way, get back at them for hiding it for so long.
Making a plan was easy because Jimin knew that if food seemed to be missing, Hobi would assume it was Yoongi eating it. He would eat his normal meal-prepped lunches for school and then also go get snacks, pastries, or even another meal at the campus dining hall.
His morning run became a morning walk, sometimes with a stop at the coffee shop or bakery near their apartment. Jimin accepted more invites to drinks with friends or classmates where he ordered a few beers and an appetizer instead of one cocktail like he used to.
Snacks and candy were always fully stocked in his bag when Jimin went to study at the library, but he tried to invite Taehyung and Jungkook to coffee shops more often now. He added extra calories to his smoothies and did low-intensity or lifting workouts when he went to the gym with Jungkook instead of his typical cardio circuits.
Sometimes, Jimin even dropped the workout altogether for a bike ride with Namjoon or a little dinner out with Jin. He made very intentional and effective choices to incorporate more calories in a healthy way wherever he could.
And it was a success. Jimin started gaining on his own but wearing baggier clothes which was easy since he often stole Yoongi’s sweaters and hoodies.
Jimin knew his partners were starting to notice a little bit when they got intimate, but neither Yoongi nor Hobi said anything. It didn’t get awkward either since it was nothing more than a little softness, less than twenty pounds after three or four months.
It was clear to Jimin that most of the weight went to his bottom half. His thighs and hips were filling out all his pants more noticeably, but his stomach had certainly gone from flat and toned to a soft layer of pudge.
Easily written off as normal relationship gain plus the stress of a grad program. Jimin didn’t think anyone around him had truly thought of it as anything to comment on.
After confirming for himself that he was definitely enjoying the process and his body, Jimin felt ready to have them acknowledge his gain and encourage him. He wanted to be in on the dynamic, but he also wanted a good reveal.
Jimin had a trip scheduled with Taehyung and Jungkook, also knowing that when he got back, Yoongi had a trip for work and Hobi also had a trip with friends scheduled. Since he was not going to see them for over a month besides video calls, Jimin decided to eat very well on his trip and when he had their place to himself after he got back.
When Yoongi and Hobi both got back home on the same day from their respective trips, they arrived to find something they never expected and never will forget.
Jimin had on one of his old crop tops from college that was now skin tight, hemline clinging to him above his belly button, and a pair of sweatpants snug on his thighs, waistband tied and tucked below his new little belly that was more round and pronounced considering he had been eating all day.
Yoongi and Hobi were speechless. They couldn’t hide their evident interest in Jimin’s new gain, clearly losing their minds internally while trying to figure out what to say. Jimin loved it.
He loved the way they were both looking at him like they were about to lose their minds. Jimin had never felt more confident in front of his partners before which said a lot considering how generous Yoongi and Hobi were with their love.
Jimin decided to come clean first, making it easier for Yoongi and Hobi who obviously were trying to figure out what to do. He told them about how he found out, how it immediately interested him, and how he planned for this.
It seemed to instantly settle Yoongi and Hobi that Jimin’s choices came from a place of personal interest and not from their expectations.
Yoongi said they shouldn’t be surprised considering how obvious they could be at times and how he’s clearly put on weight over the past couple of years.
Hobi shared how excited he was to incorporate Jimin into their dynamic, especially when he’s clearly a natural at it. The teasing already having the effect Jimin was hoping for as he felt his cheeks getting warm from the praise.
Both also apologized for not telling Jimin sooner, considering that they had a platonic dynamic before transitioning into their romantic relationship.
Jimin forgave them, knowing it was personal, but he also decided to tease them back.
“It’s alright, I understand. But just think about how much more I would’ve gained by now if you told me,” Jimin said, sending a little wink their way as he took another bite of hotteok he had been eating.
Hobi finally decided to cross the room, pulling Jimin into a kiss that tasted like the sugary sweetness of his dessert. His hands moved freely to all the places he had been resisting lately when he first noticed Jimin’s slight gain.
Yoongi sidled up beside them, stealing a kiss of his before also stealing a bite of the hotteok. His hand slipped around Jimin’s waist and noted the tightness of his full stomach - a sensation Yoongi didn’t realize he was attracted to on another person when it’s usually his own belly feeling that way.
As Hobi was dropping little whispers of praise while encouraging Jimin to take a bite of another hotteok, Yoongi tentatively massaged his hands across Jimin’s middle until he pinched the new layer of pudge below his belly button.
Yoongi and Hobi knew they were in for a treat with the soft gasp that left Jimin’s lips from Yoongi’s touch. With his recently discovered enthusiasm and gaining journey now out in the open, it already was making their dynamic feel refreshed and stronger.