If I think it will be fun. . . I have one rule, I won;t do it unless I think it will be a good time. . sometimes things that sound fun, end up being sucky, but then I learn and don';t do it again. . I am not sure what you mean by belly button fetish or what that would entail, so off hand, I couldn't even tell you I would be interested in that. . it sounds kinda boring when I try to think of what that may be. . I think I would rather wrestle;). .