The door wasn't all the way closed, and Matt loitered in the bedroom, hoping to hear or see something good. He went over to Brett on the bed, who seemed to be in total shock by now. The shower turned on, and Matt tried to be patient, hoping Mr. DeSoto would expose himself again at the end of the shower.
Instead, Matt heard Mr. DeSoto call out. "Matt, can you come in here?" Matt's heart leapt up into his throat, but he practically jumped off the bed.
"S-- Sure!" Matt called back, quickly letting himself into the bathroom. The knob was getting out of reach, but it wasn't needed since the door wasn't all the way closed.
Mr. DeSoto was standing just inside the door, not in the shower where Matt expected to see him. As soon as Matt entered, Mr. DeSoto closed the door behind him and locked it. Turning, Matt saw he was face-to-face with an enormous erection. "Matt, I'm shrinking," Mr. DeSoto whispered. "I don't want to upset Brett, but I think you are big enough to handle it," Matt wasn't sure, but he thought that last part was even said with a wink. "I know I need to get in the shower and wash it off," he continued, "but HOLY FUCK did this stuff make me horny all of a sudden." Mr. DeSoto went over to sit on the toilet seat. Matt finally noticed that Mr. DeSoto had shrunk somewhat, probably six inches anyway. At still more than twice Matt's size, he was a mountain of man. "But I'm afraid to touch my dick and get any of this stuff on it." Mr. DeSoto leaned back, his 14-inch boner pointed up. "I don't want it to shrink away while I'm in the middle of whacking off and leave me like this."
Matt could scarcely believe what he was hearing. This whole afternoon had been incredible, and it was just getting better. Matt came over to stand in between Mr. DeSoto's big legs and put a hand on the man's hot rod. Mr. DeSoto let out a big sigh. "Thanks," he said.
Matt got to work right away, but his man's cock was enormous. With both hands, he worked the tip. Kneeling down, his face was buried in Mr. DeSoto's tight ballsac, licking and kissing. Looking up, Matt saw Mr. DeSoto was still sniffing his fingers, his dick straining all the harder.
Standing back up, Matt gently shrank himself so he could stand comfortably between Mr. DeSoto's legs and suck and lick the enormous cockhead he found. With his hands working the shaft, Matt rubbed his small body against Mr. DeSoto's grapefruit-sized balls. The man's dick just got even harder as he started licking the shrinkweed juice off his fingers.
Mr. DeSoto kept shrinking while Matt pumped, his decline hastened by his sudden taste for shrinkweed. Soon, more than another foot had been subtracted from his manly frame. Matt noticed this in the shortness of his giant penis, down to less than a foot now.