TMNT Little Sis

She's 15?!

3rd Person POV

"Ugh,Donnie how much longer?"I asked rubbing my eye while Donnie typed away on his computer.It was around midnight,Donnie was running some test on me,I was having one if my headaches Donnie thought he could find out how these power's work."Almost done,I just need to give you this injection,it should stop the headaches for now."INJECTION?!"I said jumping of the lab table and wide-eyed."It's just a Migraine medicine,it only hurts for a second"he said grabbing a bottle with some liquid.

"Fine"I said getting on the table again,he walked over with the needle in hand,I flinched as the needle was injected into me.I rubbed my arm as he walked back to his desk,"That's it for today,you can sleep now Lil"he said looking back at me and smiling,I smiled back and walked outta the lab and saw Leo watching Space hero's."Hey Lil,what are you doing up so late?"he asked"I was with Donnie running test"I said then yawned,"just about to head to bed"I said rubbing my eye"Well,night Lil"he said and I waved 'bye' and left into my room.

I collapsed onto my bed and rubbed where the needle stuck me,it started to sting.I yawned"So...tired"I said closing my eyes and drifting of to sleep.

~The Next Morning~

I rubbed my head and looked at the clock it was 12:00 a.m and I decided to see if Mikey made breakfast.I put on my gear and walked to my mirror I put on my mask and looked at myself in the mirror,I froze then screamed.I heard thumping getting closer but stood against the door"Lilly?You ok?!"I heard my brothers ask."Donnie,I'm gonna kill you!"I said"Donnie what did you do to Lil?!"I heard Raph yell"I don't know!"he yelled deafeningly."Lilly Hamato,open this door or Raph will"Leo said,so I had two options either let them in or they'll come in.

"Fine when I say come in,come in,Ok?"I said and they agreed,I hid under my covers"Come in"I said and from my peak hole I saw the guys come in."Lilly,come out"Leo said"No"I said in a childish voice,I guess they saw my peephole cause Raph tried to rip of the blanket"Since when did you get so strong?"he said trying to pull of the cover"I work out"I said in a playful voice."Lil,if you don't let us see you we can't find out what happened"Donnie said,I sighed I couldn't keep this up forever.

"Promise me you won't freak out?"I asked and they nodded I stood up still in my cover and let the blanket go.They gasped at the sight of me and went wide-eyed,"L-Lilly,is that you?"Leo asked walking towards me."Donnie did it!"I yelled pointing at the purple bandana turtle,"Hey!"he yelled and Leo sighed."Come on Lil,let's let Donnie analyze you to find out how this happened he said and I nodded.

~Time Skip To Donnie's Lab~

I was on the lab table with something wired onto my head while the others and i were waiting for a answer from Donnie and he was typing."Ugh,how much longer I've been like this for what an hour?"I said exhausted"I'm hungry"I said grabbing my stomach."Well,I've found out that the shot I gave you bonded with your cells,creating an ageing malfunction with you DNA"he said standing up"Meaning?"Leo asked"Meaning that her age increased rapidly more than normal,which explains this whole situation"he said taking the thing off my head."You guys have fun talking I'm starving!"I said bolting outta the lab and into the kitchen.