How do I go about this sexual adavnce

I'm going to keep this short.

If anyone read my last post, you know I failed miserable when she was trying to take the next step. This time I plan on not letting that happen. What do I do if she wants to pull it out? How do I "act sexy" to elevate the mood? What kind of music do I play? I'm very new to this so any and all advice helps!