You were friends with Yoshi before he became Splinter, and after reconnecting with him in his mutant form, you wanted to help raised the turtles.

He introduced to the turtle tots "This one is Leonardo." he referred to the small baby turtle that was curiously looking at you

He went over to two other small tots "This is Michelangelo and Raphael." he looked down at them, one seemingly being Michelangelo eating some food while his brother, Raphael, grabbed and pulled him.

The final turtle tot being "Donatello." Splinter introduced, the small turtle curiously messing with wires of a lamp, turning it on.