DVAJ-753 · "Just the Tip Isn't Cheating, Right?" Sucking and Teasing by Girlfriend's Sister - Shiori Kuraki

I've been living with my girlfriend with marriage in mind, and one day her older sister, Shiori, came to visit. I couldn't help but feel my heart race at her incredible beauty. Late at night, while my girlfriend was fast asleep, Shiori approached me. "If it's just the head, it's not cheating..." Giving in to her convenient whisper, I offered my cock. She relentlessly kissed and sucked only the tip, then rubbed it against the entrance of her pussy, teasing me until my reason collapsed! "Any further and it'll be cheating, you know? Do you still want to put it all the way in?" I can't take it anymore! Please, piston it to the very bottom and let me shoot my cum!