Today is the day I'm visiting my friend's house. I'm looking forward to playing Litomon (Little Monster) cards. I recently pulled a super rare card, so I'm excited and can't wait to show it off. I arrived a bit earlier than our scheduled time, but I couldn't help it—my anticipation was just too strong, and waiting any longer felt unbearable. When I rang the doorbell, my sister was there waiting for me. Then, she undressed and started kissing my body. At one point, she pressed my cock between her big tits. That's when she said to me, "Your cock is like a monster." That's when I learned from her about a special kind of game we could play.