When You Smile by Melissa Brayden

Have you ever had a crush on your babysitter? Taryn Ross sure did. Sixteen-year-old Charlotte was sophisticated, thoughtful, gorgeous, and fun. Taryn counted the minutes until they’d hang out. But Charlotte and her family moved away.
Now a transfer student at Hillspoint University, Taryn is ready to officially come out when she runs into a familiar face at a party. Charlie, now a grad student, insists on walking a drunk Taryn home. To the detriment of Taryn’s heart (and libido), Charlie has only grown kinder (and hotter) with time.
Charlie Adler has a five-year plan: finish her MFA without any hiccups, figure out a timeline for her engagement, and become an acclaimed fiction writer. Easy, right? That is until Taryn shows up at Hillspoint and shakes up her world like a snow globe. This Taryn is different: soulful, brooding, and all grown up. Charlie’s never been attracted to a woman before, and isn’t dating your one-time charge against the rules? If only their toe-curling, mind-dulling, body-aching chemistry would calm the hell down.