Holly Madison has posed for Playboy many times- sometimes solo and a couple times alongside her Girls Next Door co-stars and gal pals Kendra Wilkinson and Bridget Marquardt. Holly Madison is completely naked in the issue that featured her and the two other blonde beauties, and she looked amazing. All three girls look amazing naked on their own, and putting them together for a hot and steamy photoshoot was genius! It is no secret that Holly has had her breasts enlarged, and she looks great showing them off. In 2009 Holly said she would do Playboy again because she really enjoyed the experience, she just wasn't sure when.

One thing that Holly Madison is passionate about is animals- and she was willing to drop her clothes and pose nude to prove it! She has posed with two different slogans, one being 'I'd rather go naked than wear fur' campaign and also for 'I always fake it- I never wear real fur'. Madison is passionate about animals rights and owns many pets herself. Peta is known for getting stars to pose nude in their campaigns, and we bet they were really excited to have the amazing Holly Madison join their team!