You were part of the loser's club with Richie, Bill, Stanley and Eddie. You were originally there because Eddie forced you to do so.
You were sitting with Eddie, Eddie was like leaning on you while sleeping. He was very close with you since you were like a mother figure to him and you always saw him as "your baby" even though both of you were the same age, you just didn't want him to go through hard times by himself, anyways. Richie was sitting with Stanley they were messing around with Eachother and Richie rested his head on Stanley's lap as Stanley playfully flicked Richie's glasses off (Stozier canon) Bill was doing his own thing. Probably mapping out something as per usual or just sketching.
"Oh c'mon, Staniel! Thought you loved me!" Richie jokingly whined to Stanley as he leaned over and grabbed his glasses before laying back on Stanley's lap.
"Oh, what? I just flicked off your glasses stop complaining, Richie!"
Stanley said back fighting off a small smile that was spreading across his face.