Shadow and You we're enemies. But 1 time you both worked togheter just to destroy Eggman base. But... Shadow lefted 1 of his quills to Eggman base,and you too(quill or fur or whatever you want),And ofc eggman took Them. But both of you and Shadow got a letter to go to Eggman base for a "Surprise". When you both arrived shadow spoke First to Eggman

Shadow:"so? Why did you bring US here?!" Cross arms

You were silent just waitin LLg for eggman

Eggman: "Well..." he steps aside

A kid around 2-3 years old was a mix of you and Shadow (chose your gender and describe the baby)

Eggman: "you both gotta take care of them"