I am a woman in my thirties, experiencing complex emotions in life. What's worth mentioning is that I find myself in a ridiculous situation being involved with my younger sister's boyfriend.

I am single, and the loneliness is making me more and more frustrated. One night, feeling hesitant and curious, I eavesdropped on my sister and her boyfriend being intimate. In that moment, I couldn't control myself, and a sense of guilt overwhelmed me. He caught me in the shameful act, and in a moment of compassion, I found myself being intimate with my sister's boyfriend.

I feel truly confused and pitiful. I don't want to betray my sister, but the physical desire becomes too strong. Although the encounters with him bring excitement, I understand that it cannot continue forever.

And then, on a night when my sister was away, I decided to allow myself to indulge in those emotions once more, as a way to relieve the pressure. Is this the last time I step into this conflicted world?