Step-Daughter Caught with Nipple Piercings

I knew my step-daughter Aria was acting weird when she didn't wanna go to the pool over the weekend. I was walking past her room when I overheard her telling her friend I would punish her if I knew she got her nipples pierced! I could not believe what I was hearing! I burst into the room on her and tell her to show me her recent mistake, I demand she lift up her shirt. I ask Aria why did she get them, I had heard it gives the girl more sexual stimulation while being played with. I ask her is that the reason, I wanted to see if she was lying so I started to play with her nipples. I can tell they were sensitive, she jumped in excitement every time I touched them. I tell her if she wants me to keep her secret she is gonna have to let me play with her some more. Aria and I have some fun Step-Daddy-Step-Daughter time while Step-Mommy is away.