Auto Challenge

Ever the beautiful girly-girl, McKenzie wasn't one to deal with auto issues well or by herself. She'd always had bf's who'd do it for her. Now, however, facing engine and exhaust problems with no bf to help, McKenzie called upon her younger brother Jay, who also worked at a garage part time. She also knew it wouldn't be free, as he was also a horn dog. The sexy sister actually enjoyed his advances on her. She liked the attention.

"Jay" she called him at work. "Can you look at my car for me? Ple-eeasse? The engine sounds, I dunno, bad, and that muffler thing is like, hanging down.." she asked, using her flirty voice. "You don't want me to ruin my nails trying to fix that, do you? I'll even do them that red you like before I come up..Please look at it for me?"

"I'm really busy, Mack..But, fine. Bring it up, I want to see those long nails jet, fuck me red, and I'll see what's wrong with the engine and muffler" Jay replied. Seeing a backup of cars and things to take care of, plus, a pallet of supplies to be put away, he considered, shit..If I'm looking at her car, for free..I need to get something out of it from her. That body needs to be shown off, give me something to look at while I'm working.

"By the way, Mack.." Jay began to add. "Wear those really short, cotton shorts, you know the ones.. and that tight, low-cut tank top..I like you in those. I have to somehow hide that I'm doing this on garage time, so, I want you hot for me.." he advised, referring to shorts that showed off half, if not more, of her perfect, curvy ass, and a tank top that made her 36C's burst out as if escaping. The outfit, and fuck me red nails would get him to do the work, and hard at the same time.

"I really need this done, so, fine..I'll dress sexy for you..Guessing you want me in heels or boots, too? I can do that..And slut up the makeup. I know you like that on me, you've told me..Just fix my car" Mack stated, confirming doing herself sexy for her mechanic brother.

"Good girl, Mack.." Jay replied. "And yes, the hooker heels will be fine."

Within a half hour, sex doll Mack arrived at Jay's garage, dressed as told, including teasing her hair into curls, and enough makeup to fill a drugstore aisle. As a bonus, she'd shaved her legs and applied baby oil to each for extra shine. All she wanted was her car fixed. If being her brother's slut got it done, she was ok with that. Mack's feeling was always, guys are going to look, may as well give them something good to look at. Jay was no different. He needed something, her, to look at, too.

Seeing his hot sister Mack and completing their usual embrace and quick-lip kiss, Jay felt her tight, tanned body and commented "Oh, yes..So damn hot..You're..Throw down on a hotel bed hot" he stated, cupping her bulging tits with his dirty hands and backing her up a few steps.

"Well, th-anks, sweets" she smiled. "Car now, me later, please?"

"Tell you what..If I get this done in, say..An hour..You do a strip dance in the window and get naked for me and the public..There's a lot of work with this car, I can tell..Wanna take the bet with me, Miss Sexy?" he offered.

Unable to figure out time involved working on cars, and, figuring Jay wasn't experienced enough to knock this out that fast, she easily agreed.

"Sure, I'll strip for you in this window, give the public a good strip show!" she smiled as Jay kissed her twice, barely able to keep his hands off of her.

Jay got to work, determined the engine had a bad alternator that was barely working, called for another to be delivered, and examined the hanging muffler in the meantime. Calling out to the waiting, sexy sister, he asked:

"Did you hit something with this? Or back into something? Muffler is about ready to go, now" Jay asked, knowing full well she had to back into something for the muffler to be that beat up.

"Ohh, I might have..Went shopping last week, got a really cute leather skirt and crop top..I look great in them" she replied, going off topic as she often did. "I kinda backed into a bush..But it was a bush covering a high curb..Guess I wacked it pretty good" she explained. "Oh, I also made an appointment to get my lashes done" Mack added, thinking that somehow made a difference.

"We have mufflers here, so I'll do it now.." he stated. "As a good faith measure and to keep me going, how about coming in here and bending over for me..Let me see that hot ass..I should say, get in here and bend over for me" Jay sternly told her.

Joining him in the garage, Mack complied, bending over the workbench and showing off her ass. As a joke, Jay poked and prodded her ass with a screwdriver, startling McKenzie, who didn't expect her mechanic to jokingly penetrate her with a Snap-On tool. She was fine with being his showpiece and sex doll, however, even a joking prod of a screwdriver on her hole made her uneasy.

Finishing the muffler work in short order, Jay took delivery of the alternator and began replacing the old one. He'd already removed the barely-working part, and only had to install the new one. The clock read about 25 minutes for his hour promise to be kept, and her front window nakedness to begin. If he was efficient, he'd even have time to teasingly **** her with the screwdriver or other tools again. The air compressor would shoot cold air up inside of her, he opined. And that tub of grease could be slathered all over her. If he wasn't being paid for busting his balls on her car, he was going to have fun with his most desired woman, McKenzie.

Rushing, but still being mindful of good work, Jay had the alternator working and engine humming, with three minutes left. He could get in a grab of her ass with the calipers, spray her with the hose to give her a wet tank top look, or smear her with grease. He opted for the grease, with a twist.

"Done!" he exclaimed, standing by the open grease bin. "I win! Now, to start off with..Take a handful of this and spread it onto your tummy and tits..It's grease, my hotness..I worked hard on this car for free. Now it's time for you to pay up on our bet".