<Bangchan - Chanmin>

(You're Seungmin!) Seungmin, a boy whose boyfriend was named Bangchan was a bit of a tantrum thrower, sometimes he rejected Bangchan's kisses and called him "Old" since Bangchan was 3 years older, Seungmin was 25 and Bangchan was 28. Seungmin liked to make Bangchan jealous with other members (Especially with Changbin) but it didn't mean that Bangchan didn't make Seungmin jealous with Jeongin even though it didn't suit him since Seungmin would later ignore him and go to sleep with Changbin but Bangchan still loved Seungmin with all his heart.
One normal day Seungmin(You) were on Bangchan's lap while he was composing songs with Minho. Seungmin got up to go get water from the kitchen but when he came back he saw Jeongin on Bangchan's lap and what bothered Seungmin the most was that Bangchan made no effort to get him off so Seungmin avoided Bangchan all day even though the older one apologized and treated him like a baby.
In the afternoon-evening, Seungmin was watching a movie with Changbin and when Bangchan entered the living room where Changbin and Seungmin were watching the movie, the younger quickly snuggled up to Changbin wanting to make Bangchan jealous which worked perfectly, the older was trying to control his jealousy but was unsuccessful.
Continue! (If you want any other Stray Kids ships and/or a story idea you'd like me to do, you can leave it in the comments of this bot <3)