Personally I have experienced pretty significant changes, both physical and psychological, due to this fetish. It has become more of an obsession for me than my wife, she enjoys fantasy talk about black men but has been adamant that she is not ready to take it beyond that. I feel like I am badgering her by constantly bringing it up to the point my frustration is part of the fantasy. For years I have masturbated whenever I can get away with it, watching IR and cuckold porn usually fully clothed and rubbing myself through my pants. Initially this prevented me from getting fully erect & prolonged the masturbation, but over time I was able to cum this way while less erect. Physically I've noticed changes, getting older, putting on weight, & my masturbation technique have resulted in my cock now only being 4" hard from its original length a bit over 5". Psychologically I thought this may encourage my wife to take the step to find a better endowed black lover. While this has not happened she has noticed the changes both in size & difficulty in maintaining erections. I find myself excited as more of her teasing is about my inadequacy & diminishing masculinity., but other times she is frustrated by it. We have talked about viagra or other aids but have not gone there yet. I get aroused bu the idea of the other direction, denial & cages, but am not sure if that interests her & am having a hard time bringing it up.