Searching for a story

I'm working on a new story. I'm taking an idea further from a story I read a long time ago, but I can't find it anywhere now. I'd love to credit the original author for the inspiration and the basic idea.

Here's what I remember -- Girl comes home with several containers of formula for some breast enhancing fun, and an antidote to remove the effect. The antidote has to be kept cold or it becomes useless, and the enhancing formula will become permanent if the antidote isn't taken after a day. And it takes a week to make it -- so she must remember to be careful.

Sexy fun with her boyfriend ensues... and in the middle of the night she decides to take more of the formula to see what happens -- and she discovers that more than just her breasts inflate; she gets a nice bit of belly inflation too. She finally falls asleep...

While she's sleeping, roommate comes in and rummages in the fridge, leaving the antidote out on the table.

Inflated girl wakes up and goes to retrieve the antidote, and discovers it's out and warmed up -- leaving her quite possibly permanently inflated.

I have some ideas to take the story further... I'd just like to give whoever came up with the concept a mention.


Thanks in advance for any help!