The article, which appaeared in Vogue magaine, suggested that Delevingne's sexual orientation might not be permanent, explaining that her parents believe her attraction to women is simply a "phase", reported People magazine.
"My sexuality is not a phase," the 22-year-old said, adding, "I am who I am."
The implication sparked a large online petition, in which signers demanded that the magazine recognize that being LGBT is not something that diminishes over time.