[Etori Yuuya] ★4 Review Mugen Shasei Hen [mysterymeat3]

A bespectacled tomboy with twintails orders a mail-order supplement promising ten million times the normal nut strength, and decides the only proper way to test it is dressed in his favorite sailor outfit, complete with collar, long gloves, and stockings. The five-star reviews weren't exaggerating—what starts as a leisurely solo session in front of the mirror spirals into an unstoppable, hands-free marathon that leaves him drenched, his entire room plastered, and the ceiling thoroughly decorated. The punchline lands when he crawls out of the mess to post his own ★4 review, docking one star purely because the cleanup was terrible and the smell was worse than usual.