[wxpLabo (wxp)] Having Sex With The Rival (Kono Subarashii Sekai ni Syukufuku o!)

Kazuma can't stop gloating about everything Megumin did for him, and Yunyun—cheeks burning but far too proud to concede—gets roped into proving herself when he offers to teach her exactly how to use her most impressive assets. What starts as nervous comparison snowballs into a full one-on-one contest of feet, hands, and a bouncing paizuri showdown, with Yunyun demanding to know whether she was faster and better than her crimson-eyed rival. When the verdict lands as a draw, she's already breathing hard and promising this time will be different.