Darwin stood there halfway between shocked and embarrassed. He could feel his face heat up and he started panting slightly. He knew it was wrong to keep watching, but he couldn't tear his eyes away from the scene in front of him.

He had accidentally caught his best friend and brother, Gumball, jerking off. Darwin could see everything, from the curling tail and toes to the pleased, and almost pleading, expression on Gumball's face. His chest rose and sunk rhythmically with his strokes, while letting go of a moan every few seconds, and occasionally uttered Darwin's name.

He almost didn't want to look at the source of Gumball's pleasure. Slowly, his eyes found Gumball's dick, enveloped by his hand. Darwin could tell that Gumball had been circumsized, and he guessed it was at least 6 inches. He didn't want to crack the door any farther, whether from fear of being caught or fear of ending the scene in front of him.

Gumball's legs were jerking slightly, and his moans came quicker. Darwin watched with intent as Gumball started stroking faster. He could see the tip glistening as Gumball's tail started to twitch and his legs jerked more. His moans became louder, as his back arched and he called out Darwin's name as he came. His dick let loose four spurts on his chest, and he reveled in orgasmic bliss.

Darwin was speechless. Embarrassed. And relieved. His brother, and crush, felt the same way he did. All his attempts to get Gumball to notice him had worked! Unfortunately, Gumball had unknowingly gotten Darwin... worked up. He had just watched his crush masturbate, after all. He headed back to the bathroom to relieve himself.

Gumball almost never purred. Almost never. Yet, he always finds himself purring in bed after he finishes jerking off. Every time to the thought of Darwin. His crush on Darwin started just last year at the beach, when he could've sworn Darwin purposely left his swim shorts just slightly too low. He couldn't get Darwin out of his mind and eventually Darwin infiltrated his thoughts when he was jerking off.

He sat up and wiped himself off with a tissue, tossing it away as he gathered up his shirt and headed to the bathroom to clean up.

"Darwin should be done with his shower by now. I wonder what's taking him so long?" Gumball walked across the hall and knocked on the bathroom door.

"Hello, Darwin? You done in there?" He received no reply.

"Hmm. Must be done," he said, as he opened the door, and saw a sight he never thought he'd see.