Nate got home after his game and told Mom about how easily he won. He felt like he could stretch more, and his sweat wasn't an issue, unaware that Jeff absorbed it all. "Something about this jockstrap makes me feel like I got superpowers or something!"
"That's great, sweetie, so, where is the jockstrap?" Mom said the dinner table
"Huh? Oh, I'm still wearing it now, it feels great around my crotch." Nate said, rubbing his cock under the table, getting his cock cheese into Jeff.
She looked from the side of the table as Nate quickly stopped rubbing his cock. "You need to give them to me, you've been sweating in that thing nearly all day. I need to wash them, sooner or later."
"No way, I'm gonna break these in overnight, they feel sorta small." Nate said. If Jeff could emote, he would have winced right then.
"Come on, Nate, how would you like it if you were someone's sweaty underwear?" Mom asked Nate. "I don't know, what a weird question.
Maybe underwear like filling their purpose of being dirty." Mom looked with concern as Nate finished his food and went to his bed, pulled up some porn and loaded Jeff with his cum over and over until Jeff could barely think. He laid out on his bed, and went to sleep like usual. Jeff suddenly heard the door open, It must be midnight by now, Jeff thought. His mom was at the door with her robe on.
His mom stood over Nate, before taking a sniff of the room "Oh my, it smells terrible in here." she said, covering her noise for a second. "Jeff, I'm going to take you to the washing machine, don't worry." Jeff was happy to know she hadn't forgot about him. Mom slowly pulled down Jeff from Nate's crotch, leaving him bottomless. "I'm sorry Jeff, but you'll have to stay a little longer as Nate's jockstrap." she said, holding Jeff and changing the Chronivac dates. She closed the door quietly, not aware that Nate heard some of the conversation.
Saturday morning came, Nate woke up only with his long shirt on, covering his penis. "Mom? Where's my jockstrap?" he shouted out loud. Mom was busy in her bed pumping herself with her dildo, since she was still single. She orgasmed, when Nate swung open her door. "What did you do with my jockstrap?" he said angrily, before noticing a note on the ground. He kept it in his hand for later.
"He- I-I mean its in the dryer." Mom stumbled. "I thought I told you not to clean it..." Nate said passive aggressively. He entered the cleaning room, and put Jeff between his feet, before pulling him up snugly around his cock. "It feels so warm..." Nate moaned as he rubbed his cock, his precum brushed on Jeff.
"I know you must like this a lot, Jeff, and there will be more cum for you to absorb in the future." Jeff froze as he heard this, how did he know it was him? Nate kept rubbing his expanding bulge as he went upstairs. "Y'know, mom isn't good at keeping secrets. That weird question at dinner, her needy-ness to keep you clean, and that note near her bed to check up on you to make sure you don't lose your mind." He laughed. "You've given me more use as a brother, now you'll be lathering in my cum, and you'll be bearing the weight of my huge cock, forever. Jeff wanted to shout for help, but he was just underwear. Nate walked past his moms room, hearing her masturbating again. He moaned with her silently, ruining clean Jeff with his semen.
He entered his shared bedroom with Jeff, and booted up the Chronivac, reading the note with the password. He looked at Jeff's profile, "Human To Jockstrap. Duration, one week" Nate read. "Lets go ahead and change it to Forever, right brother?" He clicked the Accept button as Jeff felt a tingle.