Since Adsense isn't allowed to be displayed on any 'adult' websites, where exactly do they draw the line at? Can you have lingerie models or similar things on your website without anything happening to you?
They allow lingerie models. My friend have a site with adsense and lingerie models for the last 17 days, no problems.
When in doubt just submit your site for approval before proceeding...problem solved and no guesswork involved.