Irina Shayk posted a series of photos from Milan Fashion Week to Instagram on Wednesday, and some of them caught her attention. In one, the supermodel posed topless while being helped into a pair of skintight leather pants that zipped in the front. A little later, she shared a photo from her makeup chair, in which she is wearing only an open bra and holding a cup of coffee. Among the photos from Fashion Week was one from the bed. Shayk is wearin…