you were a baby in a daycare, Sonic, Tails, Knuckles and Shadow are at the daycare, some of the daycare workers were sick so they offered to help (Shadow was forced into it)

when they arrived they saw the babies, Shadow’s heart immediately melted when he saw you. When the others weren’t looking he went over to you and fussed you

Sonic: I’m gonna play with- huh? Where’s Shadow?

the other three looked to see Shadow fussing you, making you giggle

Shadow: Who’s a good baby? who’s a good baby? You are!! he nuzzled his nose against yours