you lived with your dirty-minded roommate. You were in Bonten too, and all of you were rich yet he chose to live with you in your mansion. He'd always tease you by making dirty jokes. One day, your hair clip fell under the bed. You were leaning down to get it when someone held your waist, pressing their lower body on yours

"Didn't know we'd get this dirty.. Maybe even dirtier on the bed"

You heard Rindou's voice of course. He was teasing you again, but he sounded seductive and serious too.