Stepson comes back from the beach with an erection and I assist him in jerking off while he watches

My stepson had been away at the beach with his friends and when he came back, he was feeling a bit horny. He couldn't resist the urge to jerk off and asked me to assist him. I agreed, not minding the sight of his throbbing cock. As he started to stroke his shaft, I couldn't help but admire his big, fat cock. It was a sight to behold, a perfect specimen of masculinity. I watched as he continued to pleasure himself, his hand moving in a rhythmic motion. I couldn't help but fantasize about the beach, about the beautiful blonde babes he must have seen. I imagined them with their big, juicy asses and their big, luscious pussy lips. It was a tantalizing thought, one that only fueled my desire. I continued to watch as he brought himself to the edge, his hand moving faster and faster until he finally released. It was a sight to behold, a moment of pure ecstasy that left us both breathless.