The phrase "NotMyGrandpa 21 11 15 Laney Grey Romantic Liter..." seems to be a title that could be related to an adult video or a scene featuring Laney Grey, an adult actress. The numbers "21 11 15" might represent a date (November 21, 2015). The term "NotMyGrandpa" could be a reference to a popular internet meme or a tag used in adult content.