Paige Dannenberg has never taken a water aerobics class in her life. As a busy farm vet, that's never really been a problem. She's plenty good at other things--including calming cows, chickens, and nervous vet students alike. In fact, there's never been anything she hasn't been able to do if she really put her mind to it. So when she gets roped into teaching her mom's water aerobics class for a week, she's only slightly worried that she's completely unqualified. How hard can it be? Seren Winters is a successful dermatologist and has gotten far in life following a plan and keeping to a schedule. If life doesn't go according to plan, she simply makes a new spreadsheet and starts over. Which is why she doesn't sweat the details when she has to trade her usual gym routine for water aerobics.

After all, being pregnant at thirty-eight comes with some changes in details. But the last thing Seren expects is to find herself blushing in front of her new water aerobics instructor. Seren isn't someone who blushes. Or swoons. And Paige isn't someone who pairs her favorite eighties music to a workout routine. Water aerobics, however, is about to change everything. With plans and expectations thrown out the window, can Paige and Seren learn a new lesson on love?.