THR is reporting that Lizzie and Wendy Molyneux , writers on animated comedy Bob's Burgers , have signed on to work on Sony's female-centric 21 Jump Street project. The sisters are the second writing team to board the project. Sony also has brought on Lucia Aniello and Paul W. Downs, who are working on Comedy Central’s buzzy Broad City. The studio liked a pitch from the Molyneux sisters, so it is moving forward with dual-track development, in which both writing teams are working on separate scripts for the comedy. The 21 Jump Street franchise, starring Channing Tatum and Jonah Hill, has done strong business for Sony. The first two films have grossed more than $530 million worldwide. Sony also is planning a third installment in the Tatum-Hill franchise called 23 Jump Street, with Rodney Rothman writing the script. Sony is brewing two female-centric spinoffs of its previous films. Paul Feig also is directing a female Ghostbusters film, which will star Melissa McCarthy an