"I'm the perv?" he asked. "You're the one looking at my cock." And with that he let his boxers fall to the floor. I was amazed to find that my little brother was hung like a pony. His cock was not the longest I had seen, but it was thick, and veined, and the head was flared so nicely. I was staring at it for a good few seconds before I remembered it was my brother's dong I was admiring. He stepped into the shower and closed the dark green curtain.
I stood up and had to collect my thoughts for a second. I was really horny after seeing that massive meat between my brother's legs. It was so wrong, but I wanted to feel it in my mouth. I took off my tank top and shorts and quietly walked to the shower. I pulled it back in a quick yank and stepped in behind my little brother. He must have been expecting it because he didn't turn around when I came in. I wrapped my arms around him from behind and kissed his neck and shoulders as I mashed my tits into his back. He moaned as I played with his nipples before letting my hands slide down his wet soapy body to his rising cock. I wrapped my hands around it and was shocked to find my fingers could barely get all the way around his shaft. I stroked it slowly with my sudsy hand and felt it grow to full hardness. I was in awe of his package.
"This sure is a change for you sis." He said without turning to look at me. "Like what you have there?"
"Very much so. Turn around!"
He turned and stepped back so the water from the shower made a cascade down his body. It washed away the suds and made his thick prong even more inviting. I kneeled down on the shower floor and grabbed hold of his shaft as I sucked his bulbous head into my mouth. I sucked his cock slowly, deeply, devouring each and every inch I could cram into my throat. I played with his balls and stroked his shaft, all the while the hot water washed over us both. It was so hot and sultry, and the fact that it was my little brother's cock in my mouth made it wonderfully dirty. My lips formed a tight "O" around his meat and I slid up and down as he moaned and grabbed a handful of my hair. He started to guide my face faster and plunge his cock deeper into my throat. I gagged a few times, but he didn't stop, and I didn't want him to. I reached down and fingered my swollen clit as I sucked him off. I massaged my little love button as the hot water washed over it. I moaned a deep throaty moan and the vibrations in my throat made him gasp in pleasure.