In the wake of David Bowie's death, Christie Brinkley remembered her favorite moment with the music icon and his wife of over 23 years, model Iman.

The supermodel recalled Iman and Bowie's struggle to get pregnant, and says she, in her own way, helped them conceive. The couple's daughter, Alexandria, turned 15 in August.

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"Iman always told the story in such a charming way, 'It took two blondes to get me pregnant David Bowie and Christie Brinkley!'" the 61-year-old Instagrammed on Tuesday. "You see, Iman explained to me, 'In Somalia, they say if you are having trouble getting pregnant you must hold a baby all day.' So, I handed her my baby, Sailor, and she held her all day long."

Turns out, that worked. "After seven years trying without luck, Iman got pregnant!" Brinkley wrote. "So, beyond her great beauty and business savvy, and beyond Bowie's music and art, I always felt a sweet connection to this stunningly gorgeous and creative couple."

Shaken by the news of Bowie's death, Brinkely added, "Today my heart aches for Iman, and Alexandria for their untimely and unbearable loss. My deepest sympathy."

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Bowie died on Sunday at age 69, and a number of his famous friends have spoken out and paid tribute to the "Let's Dance" singer upon hearing the news.

ET pays tribute to the music legend by looking back on his love story with Iman. Check it out: