My junior girlfriend, who'll immediately come and insert her penis at my call, is the best and most satisfying sex toy. (Uragami Niki, MIDA-022)

My junior's girlfriend is my captive. She comes immediately whenever I call her, and even without me calling her, she wants to be penetrated. Now, I want to keep this sex toy. As a contestant in a female student beauty pageant, she has a cute face, and her breasts are unexpectedly large and soft, feeling incredibly good to rub. My junior's penis (boyfriend) can't satisfy her; once penetrated, it becomes a vagina that can be penetrated at will. Although it's not good for my junior, she's very sensitive and a top-tier vagina, so I plan to keep this woman's vagina until I get tired of it.