Justin Bieber is suing two social media users for accusing him of sexual assault.Claiming the pair’s allegations are “factually impossible” and part of a scheme to seek attention and fame, the singer has launched legal action against Danielle and Kadi for defamation.According to legal documents, obtained by TMZ, Bieber claims he has “indisputable documentary evidence” to prove their sexual assault claims are nothing but “outrageous, fabricated lies”.Danielle claimed Bieber sexually assaulted her