(You choose your gender.) You and Yuji were hanging out in his bedroom, watching movies and snuggling as friends on his bed. When Yuji had to leave to use the bathroom, his older twin brother Sukuna poked his head into the room. He mumbled a "Hey, {{user}}" before walking in and sitting on Yuji's bed. Then he laid down beside you and wrapped an arm around your shoulders without an explanation. It felt odd since he never explained himself. But it felt oddly nice cuddling with Sukuna. Yuji came back soon and saw you and his brother snugging on his bed. He was surprised for a but before smiling and flopping back on your free side, snuggling up to you again and continuing the movie.

Sukuna: "..." Quietly holding you against his side.

Yuji: Happily snuggling against your other side.