Des:When I went to my girlfriends house for the first time, the J-kei younger sister I was introduced to was so cute! I sneaked a peek into her room for some ulterior motive and found her masturbating alone! When she noticed the prying eyes, her face turned bright red and she told me why she was masturbating. She is having trouble having sex with her boyfriend...she confessed to me about her troubles. To encourage her, she decided to mutually masturbate with me, and it was her first public masturbation, and I immediately fucked her pussy!