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ET's countdown to the premiere of The CW's new "90210" spin-off wraps up with Dylan (Luke Perry) and Brenda's (Shannen Doherty) love story from the original "Beverly Hills, 90210."

Following the senior class of '93's prom, Dylan whisks Brenda away to a suite in a posh Beverly Hills hotel, where he sweeps her off her feet and the couple makes love for the very first time. Brenda tells him how lucky she feels, as she asks, "How many girls get to have sex for the first time with someone they love?"

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