Zhouchao, in a fit of self-deprecation, locks himself away, his body aching for release. He kicks off his clothes, revealing a body marked by life's struggles. His cock, thick and veiny, stands at attention, demanding satisfaction. He spits into his hand, lubing it up before wrapping it around his shaft. He jerks off with fervor, his hips bucking as he chases his orgasm. His breath hitches, his grip tightens, and with a final, guttural groan, he comes undone, his semen painting his abdomen.