i too have the same desire and i am working towards making it possible since past two years. my wife was also very conservative, but i bought her lot of lingeries , fancy bra panties and two vibrators. then i encouraged her to pose for me in sexy nighty , bra panty, lingerie and nude also and took lot of her pics with my digicam. then i introduced her to cam to cam fun with other couples where i slowly got her to remove all clothes. then while doing cam to cam i in her presence exchanged some of her nude pics with other chat friends. next i got my close friend as my chat friend one day and without telling my wife i exposed her naked to him on cam to cam chat. i have now recently told her that i suspect one of my chat friends are known to us. after hearing this she felt little unsure, but then she herself said that there is nothing much we can do now about it. hearing this i felt relieved. now i am going to tell her that i have found out which of my friends has seen her naked, then i will test her reaction. if she is not very upset, i am going to invite that friend home soon. when he comes, i am going to request my wife to wear something revealing and semi see through and tease him as much as possible. i will tell her that i want to make him jealous on what a hot wife i have. hope she agrees to do it. please wish me good luck, because if this becomes a success, i will be very close to get her mentally ready for a full naked exposure. may be she will be more comfortable to try it when some stranger is around rather than a known person. for that i am planning to go to goa on vacation.