The sexual assault trial of Owen Labrie, a 19-year-old graduate of elite St. Paul’s prep school in New Hampshire, continued Thursday, with the prosecution arguing that Labrie planned for months to have sex with his 15-year-old alleged victim and used “tricks” to lure her into an encounter in the school’s machine room.

Labrie’s defense claims he never actually had sex with the girl, and that anything they did was a consensual part of “Senior Salute,” an annual sex contest where senior boys compete to bed the most girls. Labrie’s lawyers described the encounter as “consensual and limited,” and argued girls were “honored” to be part of the gross “salute” tradition.

Labrie, whose admission to Harvard was rescinded after rape charges were filed against him, admitted when he took the stand Tuesday that he’d put on a condom in the machine room, but he said he didn’t go through with having sex.

“I was standing over the blanket looking down at [her], and I thought to myself, ‘maybe we shouldn’t do this,’” he testified, adding he believed the girl involved was “having a great time.”

He left the room still wearing the condom, which he says contained “premature ejaculation.”

His accuser’s story is quite different: She maintains he “scraped” inside her vagina with his fingers, licked her, and had sex with her. Four of his friends also testified earlier this week that he bragged about having sex with the alleged victim, and one produced a Facebook message where Labrie apparently claimed he’d “just pulled every trick in the book.”

“He had to use tactics to get what he wanted. He had to confuse and manipulate a 15-year-old girl to get what he wanted. You only need tricks if someone says no,” prosecutor Joseph Cherniske said in court Thursday.