In the book, seen by Variety, Nevils alleges that at the 2014 Sochi Olympics, Lauer anally raped her in his hotel room.
Matt Lauer has been accused of rape by his former NBC colleague Brooke Nevils, whose complaint against him led to his firing from the Today show in 2017.
The full details of Nevils’s allegations are made public for the first time in Ronan Farrow’s new book, Catch and Kill.
After Nevils reported her ordeal to NBC executives, Lauer was eventually fired.