My sister-in-law, who lacked confidence in her looks and avoided attention, started to change after I helped her with makeup and fashion. Her polished beauty and radiant smile began to draw attention, and my heart started to race. “I’ve liked you for a long time,” I confessed, but she rejected me. “We’re siblings…” Unable to let go of my feelings, we made a promise: no penetration, just closeness. But we couldn’t resist the heat and crossed the forbidden line. It was supposed to be just once, but she distanced herself afterward. “I didn’t want to be hated… I ended up falling for you…” Trapped between sin and love, we kept seeking each other. There’s no turning back now.