My submissive stepsister Tony overheard a conversation between my stepsister Sophia and her boyfriend.

My submissive stepsister, Tony, overheard a conversation between his stepsister Sofia and her boyfriend. Sofia said she wouldn't do anything exciting with Tony, just something normal. But Tony knew exactly what to do with his stepsister. He ordered her to expose her breasts. Sofia hesitated because she was on the phone with her boyfriend, but Tony insisted, so she complied. Next, he demanded she take off her shorts and wiggle her hips for him. Sofia did as he asked. She wiggled her hips, her vulva peeking out from her underwear. Tony told her to kneel down, and Sofia knew what was coming. She pulled out her stepsister's large penis and began to suck it. Tony penetrated her from behind so he could enjoy watching her beautiful buttocks bounce while he fucked her. Sofia rode on her stepsister's long penis, wiggling and riding until she orgasmed. Tony fucked her for a while longer, then ejaculated in her mouth. Sofia told her stepsister that her vagina was his.