New specialty coffee shop and pilates studio stretches into River Oaks New specialty coffee shop and pilates studio stretches into River Oaks Courtesy of Duo Coffee & Pilates Owners Karren and Marcus Lovely. Courtesy of Duo Coffee & Pilates Duo offers classes throughout the day. Courtesy of Duo Coffee & Pilates The movement that’s brought specialty coffee to many parts of Houston has mostly skipped River Oaks, but a new shop aims to change that. Meet Duo Coffee & Pilates, a new cafe and fitness studio designed to serve residents of River Oaks, Upper Kirby, and Montrose (2147 Westheimer Rd.). Married couple Karman and Marcus Lovely got into the pilates business five years ago. When they outgrew a smaller space, they searched for a larger location that would allow them to serve more clients and provide Marcus an opportunity to cultivate his interest in coffee. They opened Duo in January and have been steadily building a following for both Karman’s classes and Marcus’s lattes.