This is a 70s ad for maxi pads, it has the browness that 70's things often do. A lady and a gentleman are scrabbling up a hill side the lady is going first and the gentleman is just way top close behind her. If she stopped his face would be up her ass. She is looking back and smiling at him like she might stop.
https://media.beige.party/media_attachments/files/114/528/920/850/979/660/original/08b6a29637d08cff.jpeg