When asked by Katie Price if she had "her eye" on anyone in the camp, Sabrina replied: "No, not yet but when I come out maybe."
Interior designer Colin McAllister asked her "Would you . . ?" - while slyly referring to Stuart, causing the 31-year-old to blush.
She said: "No pressure, you know!"
Katie later pointed out that she hadn't said no, before moving on to Stuart, who denied he'd want his private life to be a part of the show.
He said: "I could never do anything in here."
Katie responded: "What do you mean? Sexually?"
Stuart replied that he liked to remain as private as possible.
Katie joked: "So what are you like in bed then Stuart? No, joking, just trying to have a laugh."
Stuart, 30, called the glamour model a "s**t stirrer".
A source on the ITV show has previously said Stuart and Sabrina have been flirting in the camp.