Biguns72 - My Wife's Breast Expansion

A husband misses his wifes pregnant / post pregnancy tits; they're done having kids so he'll never get to enjoy her bigger boobies again. Or so he thinks until he gets his hands on an experimental product promising bigger boobs. Without telling his wife he doses her with it and she proceeds to grow bigger, much bigger than he intended. She'll end up with tits around the size of Sharon in her dream sequence tease. Maybe Chelsea Charms size.