I couldn't believe it, peeking through the crack in the bathroom door at my little brother Todd's enormous penis. It was the biggest dick I had ever seen and it was my kid brothers. He was furiously stroking it, had been for about five minutes while I watched. I felt my body arouse, felt my nipples press out behind my bra and my sex tingle as my insides moistened. I couldn't look away as he manipulated the long wide shaft with no lubrication, just moving the loose skin up and down his vein ribbed monster.