While working part-time at a festival food stall, his girlfriend's younger sister unexpectedly seduces him! Pretending to help...and showing off her panties! Sudden kiss! Secret handjob while serving customers! "Have you ever had sex with your sister raw?" He doesn't care that his girlfriend is nearby, he has sex with her raw under her skirt! She bounces around innocently and I can't help but cum inside her outdoors! Furthermore, he is overwhelmed by his sister who is not satisfied and goes for a second round... *This work is part of the same content as 1nhdtb00862 "My Little Sister...~Outdoor Ver." scheduled to be released around April 2024.