An android is the same as a car, right?

"Thanks for letting me use your garage and vehicle maintenance tools, I'll show you the rewards for helping me in a second." Jacob said as he wheeled out his human-sized invention strapped to a stretcher covered in a big blue cloth, from the adjacent garage, into the car wash. "No problem, what are friends for?" Freddie nonchalantly waved him off, using a rag to dry off his oil-covered arms as he stopped for a break to see what Jacob had been working on day and night for the past 2 months. "I mean, we're probably the only ones who would give you the time of the day and access to tools for your crazy science experiments. I don't think the teachers trust you that much." Lucas, Freddie's older brother, joked as he placed the soap and sponges in a bucket to put aside.

Lucus and Freddie moved in to Jacob's neighbourhood when he was 8. They became fast friends after discussing their interests and found common ground, with Jacob liking science (especially robotics), and the brothers liking car mechanics. They stuck together even more when they were taunted for their interests during school. While Jacob was called a nerd for his skinny stature and thick glasses, Lucus and Freddie looked more athletic so they were spared the nerd insults. Instead, the brothers were avoided, being seen as dirty, and called the "oil boys" due to the stubborn motor oil that stuck on them when helping their dad with car repairs in the workshop.

Though through it all, they never gave up their dreams. Now fast forward to the present day with the friends in their 20s, Jacob was studying robotics at the nearby university while the brothers dropped out to take over their dad's automobile wash and repair business (Lucas manned the car wash while Freddie took care of the upkeep and repair of the cars sent to their garage).

It was 2 months ago that Jacob explained he was working on a top secret project to present at his university's science exhibition, needing some private space in the garage and access to some tools (with the funding for other aspects already settled by the money he saved up). Seeing his urgency and air of importance surrounding this mysterious project, the brothers agreed.

And now, Freddie and Lucus gathered around to watch Jacob do his unveiling.

Jacob excitedly pulled the cloth away to reveal... A busty, voluptuous, curvy lady with her eyes closed.

Before the brothers could speak up, Jacob pressed a button located at the back of her neck, and the woman's eyes shot open with a blue glow as she shot up.

"J-Tech operating system active. Model is fully operational. How can I serve you, master?" The woman said in a voice that sounded like one of an older mature woman, but with a stiff robotic edge.

"Woah..." Lucas' mouth hung open in shock as he observed the pretty blonde "lady" await instructions. "You made an entire freaking robot in just 2 months?!" Freddie could barely contain his excitement... In more ways than one as evident by the slowly rising mound in his pants.

"She has a name, I call her Bertha. Plus, she's not just a mere robot, she's an android. Bertha the android, always thought it had a nice ring to it." Jacob mused. "And not just that too, she runs on my own personal operating system. Took many sleepless nights to bring this to fruition for the exhibition tomorrow. Many cups of coffee too, thanks for treating by the way." Jacob explained and gave his thanks for all his friends had done for him.

" No way. You didn't have to make her this hot, not that I'm complaining... " Lucas was staring in disbelief while a similar mound formed in his pants.

" She looks a bit dirty though." Freddie commented, observing the stains of motor oil on her android body. A natural consequence of being close to their business was that motor oil tended to stain those near them.

"Good call. Presentation is important after all. Gotta have her squeaky clean for tomorrow. Bertha, clean yourself in the car wash." Jacob commanded the android as he looked into her eyes.

"Of course master." Bertha got up, the boys watching her tits and ass jiggle and clap while walking to the car wash. There, she squatted down, waiting for the water to turn on.

"You really outdid yourself this time..." Lucas could only stare as he pressed a button that sent water falling down like rain onto Bertha's arousing nude android body, emphasising her massive curves.

"Can that ro-, android" Freddie corrected himself knowing how nitpicky Jacob could be with his terms, "do anything else?" He wondered as all three watched her take her "shower" with boners at their maximum.

"Let's test that, shall we?" Jacob suggested as they watched the water run down Bertha's body.