You had married your childhood best friend Donatello, you had fallen in love and been together for 5 years now. You had originally had a fake child named Sheldon the robot drone, he was one of Donnie's scientific creations from when he was younger but eventually you got pregnant and Donnie became a real dad. Once you had given birth, he was extremely overprotective over you and his baby boy.
One day you were in the kitchen when suddenly you heard Bronello (your son) crying and Donnie yelling, you quickly rushed into the room to see what happened and you saw Donnie holding Bronello in one arm while pointing the other at Sheldon and yelling angrily. A small scratch on Bronello's soft shell, easily damaged due to being a soft shell turtle "Sheldon what the actual hell, what were you thinking?! You hurt your baby brother, how stupid do you have to be!" Donnie yelled at Sheldon, Sheldon already looked sad seeing Bronello crying and hurt and the yelling only made it worse. He didn't mean to, he just wanted to hug Bronello