[ROYD-324]

My friend's older sister is a gal who "isn't kind to otaku" but "is incredibly kind to my dick only" - Sarina Momonaga

When I went to my otaku friend's room to hang out, I ended up sharing a room with his gal big sister who is absolutely not nice to otakus. The moment she saw me, she flew into a rage, yelling, "Don't go adding more gross guys on your own!" But when my friend was away, she made a devil's deal: "Lend me some money, and I'll give you a handjob in return." Scary... but sexy! I ended up having both my money and my sperm drained. As expected, she started threatening me every day, saying, "Lend me money and I'll drain you again." But it turns out the gal sister had become addicted to my dick, and one day she couldn't hold back anymore, saying, "Don't you dare look at me..." as she straddled me and went for raw insertion and a raw creampie! From that day on, in front of my friend she's strict with the otaku, but when we're alone, she clings to my dick and demands creampies, and my life of going at it with the gal big sister began. For the viewer, this gal sister's sudden transformation and how I get gradually drawn in is an irresistible development.