[sevengar] The manager with big tits is defeated by pleasure-training

Mami Sakamoto, the tennis club's impossibly busty manager, expected a normal weekend—until the school principal blackmails her into staying at his house for three days and two nights, threatening to suspend her club unless she obeys his every demand. Bound, blindfolded, and gagged while vibrators wring climax after climax from her sweating, tan-lined body, the proud manager's defiance crumbles into obedience, then into something far more humiliating: genuine devotion. By Monday she's ahegao-faced and begging her new darling to pour everything inside, quitting club and school entirely to spend her life serving as his fuckhole wife.