Heartbeat Babes

From our Overly Specific Medical Fetishes file: "I've never seen anything so erotic as these two ladies auscultating each other. I love the differences in their hearts: Anna's is always slow, around 60, not exeeding 142 after exercise, matching her persona: wise, sly, sleepy, sexy in a knowing way. Yvonne's is quicker, more nervous, around 72 at rest, zooming to over 180 after exercise."

Heartbeat Babes (thanks Ted)