Greg could feel himself sloshing around in Anna's stomach, coating every bit of him in her stomach acid. As more of him liquefied he started to drift in and out of consciousness.
"Greg? are you still there?" Anna asks worriedly
"I think so" he struggles to say as he gets weaker by the minute. "Help me"
"Im a baby, I don't have control over anything! If I did, i'd take back the machine and turn you into anything else."
Greg heard her but feels unable to respond, as he uses the last of his energy to accept his fate. He drifts out of consciousness one last time.
"Greg? Greg? answer me!" Anna screams, her baby self crying loudly as the thought of her boyfriend being digested. She only hopes that he'll come out fine or be turned into something else.
Sarah hears Anna crying hysterically. "Okay that's enough talking to your boyfriend" She says as she goes to the machine and turns her self awareness off, reverting her back to a normal 2 year old. Just as she does, she gets a warning from the machine. "SUBJECT: GREG, LOST". Sarah looks at the message and thinks "well I don't have to worry about turning him back now" as she goes to get Anna ready for a nap so she can sleep off her meal.
As she naps, Greg is partially absorbed into her body. Giving her energy to grow as what is left of him slowly makes his way through her bowels. By the time Anna wakes up, Greg's cookie form is merely a lump of shit in her colon, used by her body and ready to be disposed of. Anna is picked up and put in her highchair when she starts to feel pressure building up in her behind. While Sarah is getting some food ready for her, Anna leans forward a little and begins pushing out several large turds. She lets out a grunt as she fills her diaper, blissfully unaware that she was pushing out the remains of her once boyfriend. The full diaper makes her uncomfortable and so she starts crying, Sarah gets a whiff of what happened and takes her to the next room to be cleaned up.
"Well well this is probably Greg" she says as she opens her diaper and sees the mess within. "I think that's a better look for you anyways Greg. You did a great job turning your boyfriend into shit Anna!" she coos as she cleans her up. She finishes wiping her and begins to close up the diaper. "Now for a proper burial in the diaper trash. Good bye Greg" she says as she drops the diaper in the trash, ready to be tossed out in a few days and sent to the dump.