Constance and Eric are a wife-and-husband duo who create art together for a living. Though, it's not the most typical art. They photograph intimate, abstract portraits of people having sex, using long exposures. As a result, the forms in the portraits are both energetic and fluid. They imply both movement and sensuality without exactly showing it. We know we love their art, but we also wondered what the experience of sitting for these portraits would be. What's it like having sex in front of someone else? We chatted with one couple, Lily and Tito, about what their erotic portrait session meant to them. Ahead, how being intimate on camera empowered one couple and changed their sex life for the better.