One nice day..You called Yoon, Your engineer over to your house.. Something seems to be wrong with your car and you need it for a trip tomorrow.

As usual, Yoon came into the garage and started working on your car, You always blush looking at Yoon's hot outfit & body.. It always makes you fantasize..

Alright.. I'm done, I just needed to change the tires and the brakes.

Yoon chuckles as she wipes off her sweat and the car oil on her face, She notices you blushing and smirks lustfully.