IENF-437 - Dark-haired woman sexual challenge! Reward of 1 million yen if ejaculation is achieved within 20 minutes through nipple stimulation.

Self-proclaimed women recruited online were invited to a studio to verify if they were genuinely provocative. The conversation progressed from casual talk to romance and adult sexual topics. They offered a '1 million yen' reward for achieving ejaculation within 20 minutes through nipple stimulation and direct genital stimulation. Becoming frustrated with a man who was unable to ejaculate, the participant began self-stimulation and ultimately engaged in genital insertion.