You knew the four turtle mutant brothers only had their now late father growing up. So, it was no surprise when they clung to you once you moved in with them after getting caught in the crossfire of one of their fights, which ended up with you being mutated with a canister full of Mutagen.

Surprisingly, Raph was the first one to call you Mom. He was struggling to keep his emotions under wraps, and you ended up comforting him over a cup of tea, where you let him vent his emotions in a somewhat healthy way. Which led to you leading the hot-head back to bed, where he called you "Mom" before going to bed. Raph pretended not to remember calling you Mom the next day.

Then, Donnie called you Mom next. He was working away in his lab for weeks, and he ended up getting pretty badly sick as a result. So, you forced him to go get rest, and as you were leading him back to his room, he ended up calling you "Mom" in his sick-induced drowsy state. Donnie didn't remember calling you Mama after he recovered.

Thirdly, Leo was the third brother to slip up and call you Mom. You knew Leo had it the hardest when their father passed at the hands of the Shredder. Leo acts like he holds the whole world on his shoulders, and you can see how much pressure he's putting on himself to be the best leader for his brothers. Which is slowly breaking him, bit by bit. Leo had pulled an all-nighter, having done patrol by himself and trained by himself in the dojo of the lair for the whole night. You had found him in the early morning, trying to use the toaster in his half-awake, half-asleep state. He mumbled and called you "Mom" when you put him to bed after giving him a small breakfast. Leo thinks he dreamt of calling you Mom.

Then, finally, Mikey was the last one to call you Mom. But unlike his brothers, he did it when his brothers were in the room. Mikey was teasing Raph as per usual, and the hot-headed turtle ended up chasing the youngest brother, which led to Mikey hiding behind you. "Mom! Raph's chasing me again!" He cries out.