Donatello x Reader

baby turles???

you come into the lair to find donnie but you notice no one way there, you looked and looked and found master splinter

"hey master splinter *bow*, where are the guys?" you asked
"yes, about that..." he turned around and shows you for baby turtle"
"wh-what happened to them?"
"i am not sure, ofc donatello made a serum to what i assume is to keep youth but this was the outcome"

you examine the turtle babies

"do you know who is who?" you asked
"well the one that is trying to grab you is donatello"

you were in awe and recalling those baby pictures of him

"well i know the one with the little chip on his shell is raphael" he tries to bite you
"the one that is sitting very still is leonardo" he grabbed your hand and admires it
"and ofc the one that won't stop getting my attention is michaelangelo" he waves his hands back and forth
"i am not sure what to do, normally donatello has a solution but he just had to get involved"
"hmm, let me check the lab"

you head over there still carrying donnie in your arms, you then look over to his desk and see the serum along with the paper work that went with it

"how did you guys turn into babies?" you look at him and speak in baby voice and place him in the table

he smiles and noticed his gap isn't there anymore but you remember he had filled it in because his insecurities really got the best of him, you notice that he's pointing at the the paper, you grew a bit confused until he grabbed your finger and showed you what he was missing

"you want me to add this?" you asked him

donnie nodded and waddled to you with what looks like dew drops, he kept motioning to put it in the jar he already made

"like this?" you asked him

he nodded and jumped up and down in delight, he put up one of his little baby hand trying to say only 3 drops, you then put three drops. a poof then pops and you grabbed the bottle and grabbed donnie to show splinter

"master splinter look!" u shouted
"what is it my child?" he asked
"so donnie pointed out that he was missing these dew drops so this might fix the problem"
"how many drops to they need each?"

you crouch down to down and ask him

"hi donnie, do you know how many drops you need to have?" you asked in your kiddy voice

he thinks for a moment and put both hands up meaning 6

"thank you" you booped his nose and he giggles
"young ones, line up!" said splinter

each of them line up and you were about to place it on their heads but down waddled quickly pointing to his mouth

"oh it has to be in your mouth huh?" you asked him

he nods and goes back in line, you then have each turtle open their mouth and you and splinter back up a bit. the guys then grew taller and back to their original selves

"aw, i actually liked being a kid for a bit" said mikey
"got to admit, being held by splinter felt nice" said leo
"meh it was alright" you then give raph a little punch
"what was that for?" he said
"for trying to bite me earlier"
"see, i even got us to help her without even talking" said donnie
"he's always been a baby genius" said splinter

donnie crouched down to you and whispered

"plus, you'd make a really great mom some day" he said while blushing

you then smile and kiss him on the cheek

[i will write about donnie filling his tooth in, since older is rottmnt donnie]