crossdressing

Okay someone, (yes I mean you Popkin16) posted a link to a survey about a crossdressing bigbang! thingy and now all I can think of is the story where aliens capture John and Rodney and make John work as a barwench in a leather skirt and this is when Rodney discovers John has a kink for crossdressing. Please help me!

I've googled but no luck :-(

I know I'm gonna kick myself when you tell me it's name.