Starlight was helping Twilight organize some books at the Canterlot library when she accidentally came across a secret stash of porn magazines especially the ones that featured Princess Celestia & Luna. She thought they look HOT & sexy posing naked & masturbating for the camera. Then she started getting horny herself, so she stripped herself naked but her high heels on, sat on top on a table & started masturbating & was enjoying herself. She was glad she came across those magazines & she wonders if Twilight would walk in on her & maybe join in. Maybe?