It had been a whirlwind experience. Both Sharon and Jim had believed they were dipping their toes into something new and ended up diving right in and loving it. The drive home was nothing like Sharon had envisioned—a somber, awkward, regretful commute that hung over them heavily like a wet blanket. Instead it was as if they'd both travelled back in time to when they were teenagers. They talked, effusively, about the experience and how it differed from what they'd anticipated and how much it seemed like something they'd never do—but look at them now!

By the time they pulled into the driveway Sharon and Jim had lost none of...