Let Me Make It Up To You

My step-daughter has a unique way of expressing herself, She has recently been rebellious, with slipping grades and skipping classes. Naturally, as her dad, this upsets me. I can sense she is struggling and is still maturing, being a sensitive woman.
However, I believe she will overcome this phase. After waiting a few days, I had a private talk with her. To my surprise, she apologizes for her behavior, explaining that some personal issues with her boyfriend have been affecting her.
She wants to make it up to me in a more intimate way. I am taken aback - is she hitting on me? It feels inappropriate, but before I can react, she starts undressing, promising to keep it a secret from her mother. It seems like she wants to share a forbidden moment with me.