India, April 14 -- Christina Ricci recently got candid about a shocking incident she faced as a preteen. During an appearance on Jimmy Kimmel Live!, the Yellowjackets star revealed that a "pervert" mailed her a photo of his penis when she was 11 years old. The 45-year-old confessed that it was the "first d**k pic" she ever saw.

On Thursday's episode of the late-night talk show, Ricci shared that in 1991, she and her friends "would all call 1-800-MATTRESS." "We prank-called them so much we ended up having a regular guy we'd talk to named Jared," she added.

However, those innocent prank calls went horribly wrong when "one of these idiot girls gave Jarred her address, and he sent a picture of his penis in the mail." The Addams Family star ...