It's a parade of prostitutes down at the detachment. Apparently, Shane's done 'em all, and they report that he liked them to pretend to resist his advances. Casey strolls in and can't belive what she's seeing: "Shane slept with all these women," she says. "A bunch of times, with some!" says Fin, who sounds a little impressed before he strolls off to corral some wayward hooker named Monique. Speaking of a bunch of times, the hooker who gave Shane the clap says the last time she screwed him, he was bragging about doing his teacher the same way he does her.
There's more: Sarah wasn't fired from her work for wining and dining her students; the principal was putting the moves on her, and shuffled her off to keep it secret. Casey says she'll drop the charges against Sarah and tells the detectives to pick up Shane.
Fortunately, defense attorneys have a habit on this show of walking into a room just at the right time to offer their own opinions. This time it's Annie Potts, playing Sophie, saying it wasn't her client's fault, as he is a bona fide sex addict. Oh, god...[fast-forward, fast-forward].
Eventually, we make it to the judge's chambers, while Sophie goes on about the internet-porn-surfing and inveterate-hooker-fucking that Shane partakes in, and there's some stuff about neurons and what have you. Basically, all Casey's got is, "But he raped her!" and warning that if the judge allows this, every pedophile will be found innocent because their brains are wired wrong. And while the judge seems to believe that, she doesn't want to chance a guilty verdict being overturned on appeal.
Huang interviews Shane, who, among other things, says he masturbates five or six times a day. God, who even has that kind of time anymore? Huang runs tests, which are intercut with his testimony, which outlines how Shane's brain is actually wired differently than most people's (not that he's willing to completely hand the case to the defense by outright saying he thinks Shane deserves treatment rather than jail).
After Sophie questions Shane ridiculously briefly, Casey asks him about the photos of his lingerie-clad teacher, which turns out were found on his computer. He admits to Photoshopping them on his computer after the rape. Casey gets him to admit he knows rape is wrong, but not much else and she browbeats him into breaking down crying as he yells at Sarah (in the courtroom watching) that he's sorry.