My older girlfriend "Ayaka" is known for her stunning looks and dominant, aggressive nature in bed. During our usual sex sessions, she always takes control, relentlessly dominating and teasing me—but as a male masochist, I've become deeply addicted to this dynamic. Then one day, I accidentally caught her alone with her boss, engaging in inappropriate acts. I never imagined she could do something like this. Strangely, witnessing the scene awakened a desire within me—I found myself wanting to be treated the same way. That urge would soon push our relationship into even deeper, more intense territory.