Robin Is Pissed At Her Brother

[This series of stories was a collaboration with HoneydewRemote4883. Always good to get some fresh ideas of how to bust balls :) ]

I'm pissed. I mean, really fucking pissed. I knew my brother was a perv, but my friend Ashley and I caught him jerking off to a video of me showering. I got so mad that I beat on his balls. I felt better afterward, but it wasn't enough. I'm still mad. I turned on the video feed from his room, he was just returning from a shower. He had a towel wrapped around his waist. He seemed to be looking for something, I think he had an erection. That set me off, so I decided to confront him.

"I'm still angry at you," I sneered as I opened his door and let myself into his room. Kevin looked at me nervously, like a deer caught in headlights.

"Uh, sorry, Robin."

"How dare you take a video of me showering?"

"I know, I'm sorry."

As he said it, his eyes wandered up to my chest. I hadn't thought about it before entering his room, but I wasn't wearing a bra. My tank top barely covered my tits. I felt the anger building as he stood there perving on me. I stepped up to him and grabbed his towel. I yanked it off. His cock was hard, and that filled me with a rage I couldn't suppress.

"You fucker!" I pulled my leg back, took aim, and kicked my foot up and into his dangling balls.

"FUCK!" he grunted. It was a perfect strike. Kevin looked to be in shock, his eyes wide, his mouth open. His hand quickly reached to cover his balls, but it was too late. His legs gave out, and he dropped to his knees. "My balls," he groaned. He fell backward, slowly, until he lay on his back, his legs apart and his balls still cupped in his hand.

I looked at him, so pathetic, and such a pervert. I was still angry, and I wanted more. I knelt between his legs, then leaned over him. I grabbed his hand and pulled it away from his balls, then I drew my knee back and slammed it into his balls.

"OOOOOOOF!" Kevin grunted as the sound of my knee slapping into his nuts filled the room. I looked down to see that his cock was still hard. Fucking pervert. I did it again, crushing his nuts with my knee.

"FUCK!" he grunted.

The anger seemed to be bubbling up in me, I needed more. I wanted to blast his balls up into his body, to knee them up into his throat. I pulled my leg back, then let him have it.

"OH FUCK!"

And another.

"MY BALLS!"

He tried to cover up, but he was so weak that I could lift his arms back up over his head. I held them in place as I rammed my knee into his balls.

"UNNNNNH!"

He lay helpless, defeated. He barely moved after each knee to his tender, swollen, aching balls.

"FUCK!"

"UNNNNNH!"

"UNNNNNH!"

"AHHHHHH!"

Something hit my chin, something wet. I looked down just in time to see his cock throb, then shoot a rope of cum right at my face.

"FUCK!" His cum splattered all over my face, getting some in my left eye. That fucker. I pulled my knee back and took another shot at his balls. More cum shot up, this time splattering onto my chest. My thin tank top stuck to my tits. I saw Kevin looking at them. I had to knee him again.

"ROBIN!" he cried out as I teed up to take another shot at his balls. I looked down at him, cum on his chest, cum dripping off my face onto his. Cum everywhere. His cock was throbbing and spewing cum onto his stomach. Something snapped in me. The anger was gone, instead I started laughing. Laughing at my cum covered body, laughing at his throbbing cock and red balls. I sat down between his legs and laughed until I couldn't breathe.

"Are you okay?" he asked.

I was laughing so hard that I was crying. I wiped a tear from my eye and caught my breath. "Yeah, I'm okay. How about you?"

"My balls hurt."

"Good."