Curious Step-Sister Succumbs to Big Brother's Sexual Advances

Since my stepsister Dylan moved in, she has been shadowing me at every turn. Lately, I've caught her peeking inside the bathroom while I was showering. Confronting her in the kitchen, I can't help but wonder about her intentions behind watching me in the nude.
It seems like she might have some unconventional desires for me. or maybe I'm just reading her signals wrong. Regardless, I feel the sexual tension between us and I'm ready to explore it further.