In the final installment of their ball-busting series, King Mark's chastity is put to the ultimate test. King Calvin, his merciless dom, leads him into a dimly lit dungeon, where Mark's worship of Calvin's feet becomes a precursor to the intense pain to come. Bound and helpless, Mark's caged cock throbs as Calvin's spiked boots descend upon his balls, crushing them brutally. The session intensifies with CBT, leaving Mark's testicles swollen and aching, his ass gaping, and his cock dripping pre-cum, desperate for release in this gay BDSM paradise.