"Donated" DNA messes it up

"Bah, nevermind that. Take them into the lab right away." the Shredder commanded. The two mutants quickly did so, moving into a room with two large tanks feeding into 2 human sized holding tube. The women were quickly strapped into the tubes and an oxygen mask put into place. Beepbob and Rocksteady left the cells letting the machine lock the door and pressurize.

"All done Shredder, we're ready to go!" Rocksteady shouted, tapping the door to April's tank to check the seals. Hopefully it wouldn't leak.

"Alright then, let my plan begin!" the ninja master exclaimed as he flipped a switch, and the group watched as the green goo filled both tubes. And it seemed to be working. Both women started to grow; their breasts and hips increasing in size and more muscle being added to their arms and legs. Irma even started to have fur start to cover her skin.

"Yes it's working. It's WORKING! Soon Krang, we'll have a means of changing the entire city with mutated milk and the turtles will be powerless to stop us!" The Shredder declared as he faced the alien. "You'll see that my plan works this time!". All Krang did was nod and crack a smile but before he could say anything, a confused look crossed his face and a sneering grin creeped up. Now it was Shedder's turn to look confused but the pink alien mearly raised a tentacle and pointed behind him back towards the holding tubes. Shedder turned around to see what was happening, only for his jaw to drop and his blood pressure to rise.

Irma had grown fur yes, but it wasn't the expected white and black colors. Instead it was a darker brown and her face had elongated with a pig like snout and small tusks. Her breasts had expanded to DD size and her hips and rear were a matching size but her new muscled body could handle it. Meanwhile April's skin had taken on a grey hue and a far bigger body. Her cup size had risen to maybe an F cup but how does one grade sizes given her entire body had grown with her, and even with the extra mass of flesh and muscle still had an hourglass shape. Her own face narrowed and elongated with 2 horns on top of her nose.

Shedder's plan had seemingly failed. Instead of 2 cow mutants able to produce corrupting milk, he was left with..., basically female copies of Bebob and Rocksteady!

((Author note; To help illustrate, have some pictures. Only replace the hair with Irma and April's usual styles as these are just general pulled pics. Irma April ))