In the dim light of their shared bedroom, the brothers' breaths grow heavier as they watch each other masturbate. The sight of their twin cocks, thick and veiny, drives them wild with lust. They reach out, tentatively at first, then eagerly, stroking each other off. The sensation is intense, unlike anything they've ever felt. They moan in unison, their bodies writhing in sync. The room fills with the scent of precum and sweat as they edge each other, neither wanting to be the first to cum. But eventually, one of them can't hold back any longer, and with a final, desperate stroke, he spills his load, triggering his brother to do the same. They collapse against each other, panting, their bodies sticky with cum, already planning their next encounter.