I discover my stepbrother pleasuring himself as I enter his room for a routine check

I caught my 18-year-old stepbrother in a rather compromising situation. As I entered his room for a routine check, I was met with the sight of him pleasuring himself, his hand wrapped around his sizable member. I couldn't help but be drawn to his impressive manliness. I decided to indulge in my curiosity and give him a blowjob, exploring his thick shaft with my mouth. The sight of his big cock had me aching for more, and I soon found myself being penetrated from behind. His strong hands gripped my hips as he thrust into me, filling me with his cum. The sensation was overwhelming, and I found myself craving more. I eagerly took his cock into my mouth once again, this time allowing him to fill me with his cum a second time. The experience was intense, leaving me breathless and satisfied.