On the heels of Doogie Howser, M.D. and How I Met Your Mother star, Neil Patrick Harris? confident declaration of his sexual orientation, Prison Break's hottest hunk has been besieged by persistent rumors regarding his own sexual preference. Reports have cropped up furiously that Wentworth Miller, who plays the brilliant Michael Scofield on the hit series, has been secretly dating Luke McFarlane from Brothers & Sisters. McFarlane, who was a recurring character on Brothers & Sisters, as the boyfriend of Matthew Rhys? character, Kevin Walker, had previously briefly dated Grey's Anatomy's T.R. Knight, who has been embroiled in a long-running media circus with recently dismissed co-star, Isaiah Washington.

Prison Break's Miller has been hounded by the nasty gay speculations since he shot to fame as a result of the phenomenal success of his show. He is now a favorite target of the gay question in much the same fashion as former American Idol runner up, Clay Aiken.

Sources for the celebrity gossip website, TMZ.com, say that Miller has been going out with McFarlane secretly for six months now and that they have been very discreet and guarded about their relationship because Miller is not out of the closet. Some reports even claim that the two actors are already planning on moving in together. "They spend a lot of time at each other's houses. Wentworth has been pretty reclusive since he's become famous and he's been even more of a shut-in since he started dating Luke," the TMZ mole said.

Miller is currently tied up with production for the third season of Prison Break but reports claim that Fox, which is the show's home network, is struggling with Miller's increased media shyness and elusiveness. A Fox insider told PerezHilton.com that "Wentworth's become very difficult to work with. He's been cutting back immensely on the amount of press he's doing for Prison Break. He's very nervous about reporters asking him if he's gay."