Model K.T. Mary Dunphy is suing Ashley Dupre for $1.5 million.
The suit claims that Dupre -- the call girl who ended former Governor Elliot Spitzer's political career -- stole Dunphy's former fiance, Robert Oppenheimer, in 2007, while she was pregnant. Dunphy reportedly walked in on the two having sex in Oppenheimer's New York apartment.
Dupre insists that she's never met Oppenheimer, though Dunphy says that her ex used the girl's name, and that she also recognized Dupre's tattoos from photos following the scandal with Spitzer.
Oppenheimer is said to be preparing a defamation suit against Dunphy.