Mark staired up at Mike and Sei through bleary red eyes. His little face still held traces of the former Mark, but it was now smooth cheeked and innocent, like any little kid's face. He pulled his thumb from his mouth and began to wail.
"I...want...my momy!" he yelled and before they could stop him he had stepped out of his pile of adult clothes and was running through the toy room.
"Hey wait! Come back!" yelled Mike. "Aw, man, we've gotta stop him before he gets into more trouble." As if on cue, there was a crash. Mike and Sei dashed round the rocking horse Mark had gone past...and saw 4 year old mark in a heap by a...crib!
"Ooh, no!" wailed Sei. "Now look what happened!" And they looked. As 4 year old Mark sat up, he shrank visibly into 3 year old Mark, then 2 year old Mark. His thumb moved back up into his mouth as he regressed into babyhood and his little naked body got even chubbier. Soon he was just 1 year old, and he rolled over onto his back, his thumb still in his mouth and his little legs kicking. At about age six months it stopped. He pulled his thumb from his mouth and started bawling!
"Oh great!" said Mike. "Now he's a baby!" Baby Mark squirmed on the floor. Then he wet himself.
"Just great," agreed Sei. "He's a cute baby, though!" he said as he reached down and tickled baby Mark. Mark just bawled. "Uh...got a diaper?"