Toying a trick with a zip strip

Splendid Milka and her bf are planning to go out. She takes a douche, puts on make-up, and prefers the hottest sundress to underline the hottie of her assets. Milka puts the sundress on, but she can’t zip it on her own because the zip strip is on the back. Fortunately, her bf is always prepped to come to the rescue and give her a helping forearm with that zip strip, however he determines to unbutton the sundress and spend time with Milka at home.