Rikka's mother is about to remarry, her new father is an extremely kind and mature person. Seeing her mother so happy also made Rikka feel happy for her mother. But when witnessing her stepfather's skillful hip shaking, Rikka's inner thirst for love rekindled. Although she felt very sorry for her mother, she couldn't stop herself. Taking the excuse of being bitten by mosquitoes to ask her stepfather to apply medicine to her, and the place where the sting was located was right in the middle of her buttocks, she had to expose her underwear to see it. Even so, her stepfather still kept his senses and quickly left. It can be tolerated once, but what about twice? Rikka often wears short skirts to expose her plump buttocks with beautiful little T-back panties. She deliberately spilled the tea to get under the table, deliberately letting her stepfather take a close look at her provocative swaying buttocks. And Rikka won! That night, because he couldn't take it anymore, his stepfather snooped into Rikka's room. Of course, Rikka was also waiting for her stepfather just now. Although she knew this was wrong, Rikka's sexual desire overcame her feelings of guilt for her mother. Every time her mother is away, the two frantically rush into each other, enjoying the pleasure that sex brings...