Today is the day. I've got the sexiest bra and panty that I own on and I am finally going to do it. I'm going to tell my doctor just how damn sexy he is and how much I want to have my way with him! I am sooooo nervous though. I can feel my heart racing. What's taking the doctor so long!? If he doesn't enter the room soon, I may lose my courage to make this happen. Pacing around the room, trying to calm my thumping heart, I discover my doctor's stethoscope in his lab coat. What harm can it bring if I just play with his stethoscope a bit? Wow! I've never heard my own heart beat so loudly in my ears! It's pumping so fast. I really am nervous. But as I listen, my nervousness is replaced by excitement. I kind of like listening to my heart....it kind of...turns me on! I start rubbing my tits and my pussy...and then the doctor walks in! Luckily though, despite his initial shock, he is happy to help me with my own heart exam! I tell him to stroke his cock while I describe for him exactly what my heart is doing as I get closer and closer to cumming. My heart is beating so fast that it feels it might explode. But the only thing exploding is my doctor's cum filled cock!