Sissy transformation... need help

how do I get my wife to sissify me? She has never seen me in my sissy wear, but we've talked about me having sex with a man in sissy gear, she's done me with a dildo and I have used it on myself without her prompting, and last night, for the first time, she sat on my face after I came on her pussy and cleaned her out.... then we masturbated together, fantasizing about me getting fucked by a hot guy, dressed as a sissy... how can I make this happen? What's my next step? I have pics of me on my profile here and profiles at alt.com, outpermisterals, and adultfriendfinder (over 20) and even have some hot guys who would love to do it, but how do I make the transition?