The gay stepbrother's curiosity piqued, he decides to test his straight friend's limits. He starts by leaving his porn open on the laptop, then escalates to masturbating openly in the same room. The friend, initially shocked, becomes aroused despite himself, his cock tenting his pants. The stepbrother, emboldened, moves closer, his hand reaching out to touch the friend's cock. The friend, torn between revulsion and desire, allows the stepbrother to stroke him, his hips moving in sync with the hand job, until he finally cums, leaving the stepbrother satisfied but hungry for more.