Sui discovers that her childhood friend has been visiting domination-themed sex services. Secretly in love with him, she goes wild with jealousy and suddenly tempts him by taking his cock deep into her throat, insisting he will never need to pay for it again. Alone together while their parents are away, she refuses to let go even as she gags, cries, drools, and runs at the nose. Her obsessive affection fuels relentless deep-throat play, with his cock hammering her throat while she eagerly works it with both her mouth and pussy until she squirts and climaxes. For 24 hours, his cock remains lodged deep in her throat with no escape.