Bryan could hear the Brett was already running the shower, and he led his father up the stairs by the small man's penis, now starting to show some serious reduction. They stopped in front of the bathroom door which Brett had left open a crack. Bryan could hear the splashing and knew that he was supposed to get dad in the water too, but he also realized that would be the end of jacking off his old man... something he wasn't ready to part with quite yet.
As he stood there, dad had started rubbing the outline of Bryan's big boner through his son's clothes. Bryan's dick had been hard the whole morning, or so it seemed to him now. While things were a little less dizzy than they had been outside, it still seemed like a real shame to shut down all this sex now that they were safely indoors.
Bryan layed down on the floor and flipped open his fly. He sat dad down squarely on his balls, so their four manly orbs squished together. In a moment, Bryan's throbbing shaft was being worked by little hands, as Bryan focused his full attention on his father's cock. "Cum on me," Bryan said and dad replied by grinding his once-oversized testicles against Bryan's more average equipment.
Bryan felt the rod in his fingers shrink by another third as the little man wound up for his orgasm. Finally, cum started shooting out of the little spout as wave after wave of pleasure engulfed dad's small form. At the same time, Bryan heard the water go off in the shower, and Brett ask, "Where is Bryan?"
Don stuck his head out of the bathroom and it only took a moment to see what was happening. "Oh, shit!" Don said, emerging naked from the bathroom. Sliding a hand under each armpit, Don hoised his still-shooting father up off of Bryan easily and disappeared back into the bathroom with him.
Bryan was just switching hands to jack himself off the rest of the way when Brett emerged, also naked. "Bryan, get up! You've got to get into the shower." Brett was talking, but it just didn't seem so important right now. "Look, Bryan. Your balls are already shrinking!" That comment DID penetrate Bryan's reverie, and he felt himself to confirm that half his rounded manhood was already missing.
His mind cleared somewhat, at least enough to sit up, and Brett grabbed his arm and pulled him into the bathroom where Don was hosing dad down. "Get him into the shower too," Brett said to Don, "But the plant doesn't seem to have had nearly as strong an effect on him." Don grabbed his brother by the arm and started shucking off the clothes.
Brett quickly tossed on some clean clothes, put on shoes and ran down stairs to collect Don's clothes and dad's robe before they could spread the shrinking. As he stepped out into the yard, he wondered why he had been immune today. Collecting the clothes, he waved as a neighbor jogged by, smooth and bare-chested in the morning sun. The neighbor waved his hand at the stench of the plant -- it did have a noxious odor -- but didn't seem the least bit interested in it. Maybe even a little repulsed.
Loading the washing machine, Brett realized he needed to get the clothes out of the upstairs bathroom too. Running up the stairs, he saw that Don was getting everything under control. The three older men of the house were all the correct size again, and in differing states of dryness. Wrapping the clothes up in a towel, it hit him. Don and dad were complete werewolves, and Bryan was just starting to grow into his own hairy body. Brett quickly dashed back downstairs away from the uncomfortable gathering. In the laundry room, he rubbed his hand over his own smooth chest, realizing what had made all the difference this morning.
Remembering his own trip towards the small yesterday, it seemed that this plan would shrink you either way, but for some men the trip was nigh uncontrollable.