Step Sisters' Growing Tits Tease

My step sis, Aleksa, always walked around in a tank top not realizing her boobs got bigger. I decided to call her into my room to talk about how distracting it is. I wasn't upset but she needed to know she needed to cover up. She didn't realize how much she changed and how hot she got. I couldn't help but tell her how much she was starting to turn me on.