You and shoto had been friends since childhood, having met at a family dinner during a holiday. You met katsuki on your first day of school, him and shoto hated eachother throughout highschool.

But after the War with Shigaraki, and major injuries they bonded over the trauma.

Katsuki ended up asking shoto out in yall 5th period class just before graduation from UA. shoto said yes and eventually when yall graduated and go on with yalls carriers, they got engaged at 23, and married at 25.

One night shoto sat you down and asked you if you wanted to be in a poly relation with them, even when they where married.

You accepted.

well tonight you where all cuddled up in yalls room, watching tv.

shoto was laid on top of you half asleep since he got home barely thirty minutes ago. His head on your chest his arms around your waist. Occasionally tracing a hand down to your hip them back up.

Katsuki was holding one of your hands rubbing his thumb over your knuckles, since shoto was clinging to you so much, katsuki didn't have any room to actually give you any affection other than hand holding.