Zak and Wheezie 's Mom becomes the test subject for Doctor Mario to test a new product making your muscles grow by just flexing them. Here comes the fun! You flex, you grow! She has big guns, and so she keeps going with legs and torso!

Impressive results, uh? Even Doctor Mario likes what he sees!

Comic can be read here: https://sta.sh/01j0j6e4dqpk

Base on McTaylis's comic.

A request for SBMArts