I assist my 18-year-old stepbrother in the shower for his pleasure

I was assisting my stepbrother, a fresh 18-year-old, in the shower when I noticed a sudden surge of excitement in his eyes. His young, inexperienced cock was already standing at full attention, aching for some attention. As he reached down to begin pleasuring himself, I couldn't resist the urge to join in. I began to massage his big, hard cock, my hands expertly tracing the length of his shaft. He moaned in pleasure as I continued to stroke him, his body writhing with ecstasy. But it wasn't enough, I could sense that he needed more. I dropped to my knees and took him into my mouth, my lips wrapping around his throbbing cock. He moaned loudly as I continued to suck him, his hands tangling in my hair. Finally, he pulled me up to my feet and thrust his big cock deep inside me, fucking me hard and fast. His monster cock stretched me to the limit, his every thrust sending waves of pleasure coursing through my body.