Upstairs, Brendon and his girlfriend Megan were smoking pot and listening to tunes in his room. They didn't notice as a strange pink mist wafted up the vent into the room, joining with the haze from their blazing.
They barely shrunk. By the time the fog reached them above the basement it had, as Rick has guessed, become so diluted that it barely had any potency at all. Not more than few centimetres of size melted from the two teens, yet it created the same hyper arousal in both... a recipe for disaster in the already easily aroused teenagers.
“Shit, babe...” Brendon sat next to his tall blonde girlfriend and gave her the eyes. “You look fine today.”
“Yeah?” Megan said, taking a quick puff and handing the joint back to Brendon. She smiled and blushed. “Your dad is downstairs, though... we shouldn't. Not when when somebody's home.”
“Ah, he'll be busy down there for hours.” Brendon laughed, snubbing the joint in an ash tray next to the bed. “We got enough time for a quick one. I don't think I'm gonna last long. You got me so fucking hot right now.”
“Y-Yeah?” Megan blushed deeper, and threw her hair back. She bit her lip and had to admit she was feeling pretty hot herself. “Fine, but a quick one. Come on, stud. Put one on and let's go.”
They eagerly stripped, climbing onto Brendon's bed as he fumbled with a rubber from under the matress on his hard cock. The two teens mounted, Megan on top, Brendon on the bottom, and she began riding his dick, her big breasts bouncing as she rode the young football star with gusto.
Damn! She was super slick and super turned on. Megan realized with excitement she felt like she was going to cum on his dick! This has never happened before!
“Oh fuck!” Brendon gasped, thrusting desperately. “I'm gonna blow...”
“Fuck, fuck!” Megan gasped in frustration. “No, not yet, babe! I'm... I'm close...”
“What?!” Brendon said in delighted shock, and grunted as he blew his load in the rubber, his hot horny girlfriend popping him as she ground against him hard desperate to get her release.
“A-Ah!” Brendon cried, gasping and pumping as he unloaded. Megan began to sweat hard on top of him and grabbed his shoulders. He shrank under her grasp, losing a few inches from his fast climax and going fully hard again inside of her. Yet she was so turned on she couldn't think or realize anything was amiss. She missed the feeling of the wet condom sliding loosely off Brendon's dick, his slimmer shoulders under her bigger palms. All she cared about was popping off on her boyfriend.
She did. Megan threw her head back and let out a feminine cry of pleasure as she came. And shrank. The teen girl fell from her usual 5'2” to a much tinier 4'10”. She had always been an inch or so taller than Brendon, now she was shorter than his reduced 5'4”. The two teens fell off of each other gasping and Megan blushed red in horror as she realized the condom was hanging from her throbbing pussy.
“Shit!” She stared in muddied shock. “It came off! You better not have fucking jizzed in me!”
“B-Babe...” Brendon whispered, grabbing Megan and pulling her close for a hot makeout session. “You're so fucking hot. I never tell you that.”
Megan gasped and mmmed her surprise into Brendon's mouth as he remained rock hard and frantically pumping against her thigh.
She broke away, panting, and realized something was weird. Why did she feel so off? Why did HE feel so off?
“W-Wait...” Megan pushed him away and tried to fight her urge to put his cock right back in. “What... what the fuck is going on?”