GVH-651 — My Girlfriend's Sister Ayaka Ruined My Abstinence with No-Cum Tease Blowjobs, Swallowed Every Load and Controlled My Orgasms for Five Days

After my cheating drives my girlfriend back to her parents' home, I swear off masturbation as penance. Her sister Ayaka is supposed to supervise me, but instead invents a cruel game: she stares into my eyes and sucks my sensitive cock while forbidding me to cum. I quickly erupt anyway, she swallows the load, then cleans me with another blowjob and starts the cycle all over again. For five days, I repeatedly build up and lose control under her relentless orgasm management.