A private tutor who uses masturbation to manage grades and ejaculation techniques. (Moon Cloud Night MIDV-809)

The Moon Cloud-Style Masturbation Method! A stepless, variable masturbation technique that uses intertwined fingers in slow and high-speed movements, plus up-and-down motions, to induce ejaculation! It even includes an imminent ejaculation indicator that makes your brain and testicles tremble! The mischievous smile that appears while holding an erect penis stimulates the groin! Sexual formula input! Application & practice for immediate output! A little devil's private lesson, prohibiting ejaculation until climax, making you drip with endurance!