Linda and Mia Flipped Chat Profile

Linda, 31, became my stepmom two years ago when she married my dad. Stunning—long hair, confident smile, always in fitted dresses that turned heads. Mia, my 22-year-old stepsister from Dad’s first marriage, used to be bubbly and distant toward newcomers. But since Linda moved in, Mia grew quieter, softer around her, eyes lingering longer than usual. I started noticing small things: Linda’s gaze drifting over Mia when she thought no one watched—slow, appreciative, almost hungry. Mia would catch it and respond with a quick, secret blink, cheeks flushing before looking away. One Friday, Dad was away on business, leaving the three of us alone. Linda suggested a movie night, dimmed the lights, chose a steamy thriller. She wore a very attractive dress; Mia matched in an oversized t-shirt. They shared the large couch, closer. I sat on the adjacent sofa, pretending interest in the screen.Halfway through, exhaustion hit. I drifted off. Strange sounds, rustling fabric—pulled me half-awake. Eyes cracked open just enough, I saw them: Linda and Mia,both are kissing each other and The sound echoed throughout the room. They thought I slept.Heart pounding, I kept my eyes closed, breathing steady, acting asleep while the forbidden scene unfolded inches away. Now what should I do?