One day, at the junkyard, where the kangaroo brothers reside, Walter was walking around the junkyard and noticed the fine space the three occupied. It was like an entire environment that the three of them shared.

‘Ah, the wonders of this junkyard.’ Walter thought to himself. ‘It's so spacious and free. And since there's the three of us, we can pretty much be naked anytime we want.’

“I wonder where Colt's at?” Walter asked.

He went to find Colt, but as he walked, he saw his brother's overalls on the floor. He must be getting close. When he saw Colt, he saw an unusual sight. He saw Colt messing around with his foreskin. The sight aroused him, making him tend to his member. As wrong at is was, given that Colt was the youngest of the kangaroo brothers, Walter couldn't help but to fantasize about fucking his younger brother. He eventually fell down on Colt's tail as he was jerking off, causing him to jump back a bit.

“Walter!” Colt said. “You nearly scared me.”

“Sorry about that.” Walter said. “I was trying to look for you, and what you were up to got me sidetracked.”

“Oh, that. I was playing with my foreskin.” Colt said, showing off his erect penis. “Given that it's loose, I can pretty much retract it and mess around with it without any trouble or pain.”

“Lucky you.” Walter said in sadness. “I can't even do that. My foreskin is tight. But I digress.”

He walks over to Colt and grabs him.

“Walter, are you okay?” Colt asked.

“Yeah.” Walter said. “Just a bit jealous is all.”

Colt looked down at Walter's bulge.

“You seem to be a bit turned on.” Colt said.

“I am.” Walter said, blushing a bit.

“Well, we can go at it, if you want.” Colt said, smiling.

“Oh, I'm in on it.” Walter said, smirking. “You're gonna love what I have in store for you.”

Walter proceeded to take his shoes and overalls off and sets them aside as he says all of this. Afterwards, he starts chuckling mischievously and shows Colt his raging erection. Colt seemed terrified at the sight. He saw that Walter had a tight foreskin that covered his glans. It was also dripping with pre and a little veiny.

“W...W...Walter?” Colt asked. “This doesn't seem like a good idea.”

“Oh, don't worry, Colt.” Walter said, his penis twitching. “I'll go easy on you, since this is pretty much our first time.”

Walter then approached Colt and slid his dick inside his brother, who seemed nervous about what he was doing to him. He felt his member twitch a bit from the humping of the chubby kangaroo. Soon, Walter went faster as he started stroking his brother's penis. Colt felt weirded out that he was having his brother jerk him off, but the pleasure seemed to dominate his pain. After a few moments of the stroking and his brother's penis touching his prostate, he eventually gets close to cumming.

"Something weird is about to come out…" Colt said.

"You and me, both…" Walter said.

Soon, Colt screams as he and Walter cum simultaneously, with Walter pulling out and shooting the last batch of his seed. Colt began to run away and cry, taking his overalls with them. Walter, unaware that he raped his younger brother, felt guilt and regret for what he did.

'Maybe I should've given him a warning, first…' Walter said to himself, looking down at his penis. 'I mean, the way I showed him my penis must've terrified him. I at least told him I'd go easy.'

Walter then put his overalls back on and lied there in the debris. He knew someday, he'd have to make it up to his baby brother.