Czech Soles - Anti-smell serum lab research for her really stinky feet

Dita and Charlie work at a medical science lab and they set themselves a goal to develop a serum which applied to smelly feet will negate the smell and make such feet smell nice.
They have came up with this idea after sharing a lab together for quite a long time with one little problem - Dita's feet smell horribly! So Charlie at first didn't want to work with her anymore but that was not an option so they instead decided to put their time into this project.
They are developing it right now but there were no volunteers to test it actually on smelly feet so Charlie is testing it on Dita's smelly feet. They smell so bad and the prospect of smelling nice sounds so great Charlie is willing to take that risk. He's applying number of samples with different properties on her feet and he's examines her feet every time. That means he's smelling her feet and comparing results. Most of the time it goes somewhat well but this one time the sample serum makes things worse and Charlie actually falls asleep from the horrible smell on Dita's feet. This is yet gonna be a hard fight to get this research to a successful end.