[DVAJ-753]

"Just the tip isn't cheating, right?" Shiori Kuraki succumbs to her older sister's teasing torment, where she sucks and rubs her swollen glans with a slurping blowjob and rubs it against her vagina, pushing her to the brink of no return, and ends up cheating with a deep vaginal creampie.

My older sister Shiori came to visit the house where I live with my girlfriend, who I'm living with with marriage in mind. My heart raced uncontrollably at her incredible beauty, and then, on a night when my girlfriend was fast asleep, Shiori made a move on me. Yielding to her convenient whisper, "If it's just the glans, it won't count as cheating," I offered my dick. She then persistently kissed only the tip, sucked on it, and even rubbed the head against the entrance of her pussy, teasing me until my reason collapsed. She asked, "If we go further, it'll be cheating, you know? Do you still want to put it all the way in?" Unable to hold back any longer, I begged her to please piston it all the way to the deepest part and let me shoot my semen.