Yui noticed that her son Akira was unconsciously scratching his crotch, so she decided to lend him some delicate cream. After a while, "Ew, I'm starting to feel itchy too..." Yui went to Akira's room to get the cream back but he wasn't there. She searched all over the room and finally found the cream she had lent him, applying it to her own crotch. However, she began to feel a strange sensation as her crotch started to tingle and her body grew hot...
