ADMIN: INCEST QUEST
(Friday Evening)
Aaron's erection did not subside during the entire drive back home, thanks in part to Jessica's hand resting on his thigh, lightly massaging it, and her insistence on nuzzling his neck at every full stop along the way. They were both relieved to see that their parents were indeed out on a date, meaning they should have a least a few hours to themselves. Their new habit of kissing and groping in the garage persisted, even though they could have carried the action into the main house safely.
Gently biting her brother's lower lip, Jessica stared mischievously into his eyes and grinned. Releasing her grip, she breathed into his ear, "You know what we should do now, bro?"
Aaron's skin got goose pimples from the warm air and he croaked out, "What should we do, sis?"
"Well, you've already seen me in two bikinis, so there's not a lot of point trying on the others. More of the same, right?" she asked quietly while licking her brother's neck.
"I guess that's true, although I'm all for third and fourth helpings, honestly!" he said, palming his sister's tight, athletic ass cheeks through her pants.
"Then let's go do some aerobics!" Jess said brightly.
Aaron's mind conjured up the needle scratch noise as his train of thought abruptly derailed. "What?" he asked, completely baffled.
"I got myself some new workout clothes!" she said happily. "And since we didn't go jogging together today, maybe we can just stay in and do some cardio in front of the TV!"
To say Aaron was disappointed would be a gross understatement. Still, given Jessica's new choice in swimwear, there was every chance that her new exercise outfit would be titillating in its own right. And to be fair, his master plan did involve using fitness to get in her pants, or for starters, to get her out of them. Doing his best to look enthusiastic, Aaron gave a patently fake grin and said, "Great idea!"
Jessica laughed, clearly not deceived by his false eagerness, but kissed her brother on the lips and said, "No need to be so glum! I promise you'll enjoy the experience!" Grabbing her bags from the car, she headed into the house and called out, "Meet me in the living room in five minutes!"
Aaron went to get changed and was soon back downstairs, although he paused long enough to check the ADMIN app. As expected from the fanfare, it told him that Jessica was now ready to be fully undressed around him, so he expected the night would end with some viewing pleasure at the very least. The next stage was the first of the overtly sexual ones, as it involved manually pleasuring one another. The quest level would be complete once both of them brought the other to an orgasm with their hands. Aaron didn't have time to do anything major just then, so he quickly sent his sister an amended version of her existing belief that it was flirtatious to brush up against his cock when clothed. It took two tries, but he succeeded at making his sister feel that it was flirtatious behavior even when it was skin to skin contact.
Aaron was standing around in the living room waiting. Somewhat more than five minutes later his sister walked in, causing his jaw to drop and his cock to rise. Jessica grinned at his stunned gawking and gave a little pirouette to showcase her whole outfit. The spin was hardly necessary, considering her ensemble consisted solely of a pair of panties that barely covered her sex in the front. From the back only the strings over her hips were visible, as whatever tiny amount of material connected them to the gusset was swallowed by her buttocks.
"I know you love my sweaty clothes as much as I love yours," Jessica said, "But as long as we're working out alone, there's no need to make a big pile of laundry, is there?"
Aaron gulped and replied, "I guess that makes sense!" while staring at his sister's exposed breasts, flushed red and with swollen nipples straining for attention.
"Good! Then let's get you out of those heavy things!" said Jessica, kneeling down to pull her brother's basketball shorts and briefs off, laughing as his hard-on slapped her in the face but pulling away slightly with embarrassment. "After all, the original gymnasiums were all-nude institutions!" she added as she got back to her feet and tossed his clothes on the couch.
Throwing his tank-top to the side, Aaron felt both weird and aroused to be standing in the living room completely undressed. Responding to his sister's jibe, he pointed out, "That makes you a little overdressed for the occasion, then, doesn't it?"
Jessica put on a mock thoughtful expression for a few moments and then said, "You're right!" With no further ado, she dropped her panties to the floor and posed with her legs slightly spread, breathing heavily as she exposed herself fully to her brother for the first time, eyes locked on the purple head of his cock as a small bead of precum forced its way out.
"Oh, geez," groaned Aaron as he squeezed his dick painfully, worried for a moment that he might bust his nut just from the sight of his naked sister displaying herself for him.
Jessica seemed to realize the situation, and her eyes were very bright when she locked gazes with her brother and huskily said, "Let's get started, then, shall we?"
Turning around and bending over provocatively to grab the remote, Jess flicked on the television and selected a recorded program that she often used. She gave her brother another mischievous grin as she started her warm-up stretches, apparently unconcerned that he had no attention to spare for the show running in the background. At her insistence, Aaron started doing whatever she did, as best he could mimic, although he had no idea what exactly the exercises were. All he could concentrate on was his sister's body, gloriously nude and soon slick and shiny with sweat. He did his best to commit her every line and curve to memory, trying to burn the sight of her flexing glutes and bouncing breasts permanently onto his retinas.
Aaron was shocked to realize it had been an hour when Jessica abruptly stopped mesmerizing him with her movements and turned the TV off. "Heck of a workout, huh, bro?" she panted, clearly almost as turned on as he was, but powering through it with a bit more aplomb. She grinned as he made eye contact again and raised her arm to sniff at her armpit. "Whew! That's pretty smelly! What do you think?"