Catherine Zeta-Jones Shares a Sexy Bikini Snap of Her Toned Tummy

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Catherine Zeta-Jones gave her Instagram followers a glimpse at her day at the pool with a sexy swimsuit pic.

The 46-year-old actress snapped herself from the waist down, lounging in a string bikini. "#ThrowbackThursday to lounging poolside during my recent travel adventures. Bliss," she captioned the photo.

RELATED: Michael Douglas Reveals How He and Catherine Zeta-Jones Saved Their Marriage

Zeta-Jones didn't elaborate as to where this gorgeous pool is located, or if her husband Michael Douglas was with her, but she did post a pic a week ago of her posing in front of some beautiful blue water. "A beautiful spot for lunch!" Jones wrote.

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A beautiful spot for lunch!

A post shared by Catherine Zeta-Jones (@catherinezetajones) on

When ET caught up with the actress' husband of nearly 16 years in February, we asked the 71-year-old actor what would be the biggest highlight of his career. Douglas immediately gushed, "Right now, it would probably be the Deauville Film Festival in 1999 when I met Catherine. That was the best memory I got."