Any advice on gently breaking in patent leather high heels?

This Christmas my boyfriend generously gave me a pair of patent leather Jimmy Choo pumps. They fit well but because they’re high-quality patent leather, they’re more than a little on the stiff side.

I’ve never had such an expensive pair of shoes before, and I don’t want to risk damaging them with a shoe stretcher or any myriad other “tricks” I’ve seen floating around forums. (wearing wet socks, blow dryers, etc.)

Does anyone have any tips on how I can gently soften the shoes and get them to “mold” to my feet a little better? I don’t expect to run the New York Marathon in 4” pumps but walking more than a few blocks would be great!