EXCLUSIVE: Jenny McCarthy's prom dress fits her better now than it did 25 years ago

Jenny McCarthy basically stopped aging in high school.

At 43, the actress and mom showed ET she is still able to fit in her prom dress from 25 years ago!

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"It actually fits better now than it did then," said McCarthy's husband, Donnie Wahlberg.

"Because I bought boobs!" McCarthy added with a laugh.

The couple were decked out in high-school chic formal wear in the middle of New York City's Herald Square on Wednesday to promote SiriusXM's Prom Radio.

Both were able to recall their prom experiences, although neither of them seemed to enjoy the events too much.

Pictures of Jenny McCarthy and Donnie Wahlberg in old prom clothes:

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"I knew I was with the wrong date," Wahlberg said. "I was hoping one day to be with the right date at a prom, and I think today it's actually happening."

McCarthy showed us her prom photos with her date, Bob from Long Island.

"This is some guy I met on Spring Break," McCarthy explained. "He lives in Long Island. I have no idea who he is."

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"Bob, you missed out on the good boobs, buddy. Sorry!" Wahlberg said

Prom Radio airs Friday on SiriusXM.