NOTE: This zip file contains the story in both PDF and ePUB formats.
 
Tara is always getting angry that her boyfriend has no way to give them private time. So if they can't be private, they can at least have room to play! She decides to swipe from her lab a few vials of shrinking formula. When they take them, they'll have all the room they need in the backseat of his car. However, with her potion case, she can do more than make them shrink.

Contains: (Shrinking man, shrinking woman, body part growth).
 
If shrinking the backseat of car is your thing like mine, I have this story and a collection of others available here: https://www.giantessamber.com/product-page/the-backseat-shrinking-series-1-5