This sounds like you are developing a story, a social media post, or a creative writing project involving a "flirty stepsister" dynamic. Because this is a common trope in fiction (often found in web novels, anime, or romantic comedies), the "final" version needs to balance the tension with a clear narrative hook.
He sighed. “Maya, we can’t keep doing this. The flirting. The… almosts.” life with a flirty stepsister final new