“Keeping Up With the Kardashians” star Kendall Jenner was accused of getting lip injections after she posted a new picture to Twitter Monday. The model was promoting her new book, “Time of the Twins,” which debuted on bookshelves Nov. 15. While she and Kylie Jenner are sisters, the duo looked less alike after Kylie underwent lip injections. In Monday’s post, Kendall sported a similar pout.