Stuck in Wife's Party Dress

My wife called to tell me she and her friends were going out for some drinks after work. I was happy to hear this as I am a part time crossdresser and she just bought a new party dress I wanted to try on. I put on the usual lacy bra, panties, pantyhose, and high heels, and finally, the new dress. It fit nice and tight. I have been admiring myself in it all night. A few minutes ago, as I tried to unzip it, the zipper broke and I am stuck! I have wriggled and reached, but I can't get out of the dress. My wife is due home any minute. I know I can't rip the dress, but I don't want to get caught either. I hear her car pulling in now. I hope she doesn't get too mad.

— Alex, 28