You see that a lot with new couples on RLC. It either takes them days to get comfortable in front of the camera or they leave within a week because it freaks out. I think it is easier said than done to live your life, nudity and all, in front of strangers.
I notice occasionally even some of the current residents are shy on cam. Dizi was always shielding her boobs as was the redhead. Even Ivorian who is constantly having sex seems to instinctively cover his dick when they are playing their nude party games. Only Akira and Petra seem completely at ease with the constant nudity though Phil doesn't seem to care much either and Tanya definitely seemed to embrace it, at least in the bathroom.