Does this description ring any bells?
A couple go on holiday (of sorts), she does all the packing, taking only his female clothes. He is locked in chastity. Upon arrival at the hotel, she ties him up to the bed, then informs him that she is going on to another state (for an art convention or something). He will have to live the week as a female before having to fly home dressed as a woman and locked in a chastity belt.