**This clip contains genuine recordings of my (Miss Mackenzie’s) heartbeat!**

Usually when I allow you to listen to recordings of my heartbeat I insist that you get excited but do not act on it, leaving your cock hard and pulsating. However I thought it was time I allowed you to really indulge in your growing addiction to myself and my heartbeat, so in this clip I will actively encourage you to stroke your cock as you listen to my thumbing heart. I will expect you to have a hard cock throughout the clip and I will instruct you on exactly how to stroke. There will be three different... Show more