At the gym, Ms. Wood was drenched in sweat on the treadmill.

A sports bra and yoga pants showed off her figure like they were made for her. Long legs. A waist you could circle with one hand. The kind of body that made it hard to look away.

She worked out all the time. Her stamina was solid.

Compared to her, I didn’t even deserve to be on the same treadmill.

I’d only been running a few minutes before my legs felt like they were filled ...