The 20-year-old newcomer, who made her debut on the show last week, sobbed in anger after being asked by Georgia Kousoulou on Sunday night's episode (6 March) if the gossip was true.
Courtney initially seemed incredulous, asking Georgia: "Are you joking? Are you winding me up? I don't even have his number. I have literally slept with four boys in my whole life and they've been boyfriends. I've never even kissed the boy."
Georgia said she didn't want to see Lockie's ex-girlfriend Danielle Armstrong hurt, so she wanted to get to the bottom of where this rumour came from. She also told Courtney the suspicions had been aroused as Courtney said last week Lockie had asked her for a kiss, but she'd never mentioned that before.
"I think when we first met you, you never said he asked to kiss me, all of a sudden, now two weeks down the line, he's asked to kiss you. Why didn't you say that from week one?" questioned Georgia.
Courtney responded that they'd been at a night club, she'd been drunk, and she couldn't remember every detail from the night.
"I am not like that," she vowed. "I've never had a one night stand in my whole life. I've never even touched the boy ever. I have been out of him once and everybody was there. Am I meant to have had sex with him in the club? It's bullsh**t. I'm not that sort of person. I have morals, I don't go around sleeping with anyone and all my friends know that."
Courtney then began to cry as best friend Chloe Meadows comforted her. "They've made me out to be a f**king idiot," said Courtney. "It's not fair. I'm not like that. I've never f**king touched the boy."
Since joining the show, Courtney hasn't got off on quite the right foot with Danielle, who split from Lockie last year but has admitted it's proving hard to move on, especially as she works with him and is around him all the time.
Danielle has said she's "wound up" by Courtney mentioning Lockie's name, while Courtney has said: "If Danni does still like him, I'm not the sort of girl to dive in there. There has been a time when I could have gone there with Lockie and I said no and that's what she needs to understand. I could have had the chance and I turned it down."
On last night's show, the girls came face to face. Danielle said she didn't have a problem with Courtney, she would just prefer anecdotes about Lockie asking to kiss her not be talked about as she doesn't need to hear it when she's trying to move on from him.
TOWIE continues Wednesday at 10pm on Wednesday
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