Partners in prime time! Charlize Theron brings her adopted son Jackson to her Jimmy Kimmel appearance as she sports a polka dot skirt 

By Dashel Pierson For Dailymail.com

Published: 21:15 EST, 20 July 2015 | Updated: 09:14 EST, 21 July 2015

After splitting from Sean Penn, she now has only one man in her life.

And Charlize Theron was spotted with her main squeeze - her adopted son Jackson - on Monday as she stopped by Jimmy Kimmel Live.

The 39-year-old South African walked hand-in-hand with the young boy while she wore a polka-dot skirt outside of the New York studio.

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Hold on tight: Charlize Theron, 39, was spotted as she left Jimmy Kimmel's New York studio on Monday with her adopted son Jackson holding her hand

Hold on tight: Charlize Theron, 39, was spotted as she left Jimmy Kimmel's New York studio on Monday with her adopted son Jackson holding her hand

Opting to go bra-less, the Mad Max star wore a plunging black blouse that looked somewhat like a short silk robe.

She teamed the top with white leather sneakers and dark, cat-eye sunglasses.

The polka dot skirt was a retro throwback to the milkshake-sipping, jitterbug-dancing young ladies of the 1950s.

Throwback: The South African actress sported a polka-dot skirt, which hearkened back to a 1950s style

Throwback: The South African actress sported a polka-dot skirt, which hearkened back to a 1950s style

Young Jackson wore a bright yellow shirt emblazoned with an octopus graphic for the occasion.

He also sported khaki shorts and a pair of baby blue New Balance trainers.

Charlize adopted the young boy in 2012 after, 'trying to adopt a baby for a long time,' a source told People.

Baring it all: Opting to go bra-less, the actress wore a plunging black blouse that was almost like a short robe

Baring it all: Opting to go bra-less, the actress wore a plunging black blouse that was almost like a short robe

Split: After nearly a year and a half together, Charlize recently split up with actor Sean Penn; the former couple seen here at the Mad Max: Fury Road premiere in Cannes

Split: After nearly a year and a half together, Charlize recently split up with actor Sean Penn; the former couple seen here at the Mad Max: Fury Road premiere in Cannes

After nearly a year and a half together, Charlize recently split up with actor Sean Penn.

The couple had known each other for decades before dating, remaining just friends.

And in December of 2014 they had secretly gotten engaged in Paris.

Although they're not together romantically anymore, the two have been working together on the upcoming film The Last Face with Penn directing and Theron starring.

May 15!

A photo posted by Charlize Theron (@charlizeafrica) on

Most recently, Charlize has been enjoying the success of her starring role as Imperator Furiosa in Mad Max: Fury Road.

And after the reboot of the 1980s film trilogy won over audiences and critics, director George Miller announced more new installments to come.

A title for the following film in the saga has been released - Mad Max: The Wasteland - but no details have been revealed; however, stars Charlize and Tom Hardy are attached to the film.

Dream come true: Charlize adopted Jackson in 2012 after trying to adopt for a long time; the young boy held his mother's hand as he wore a yellow shirt with an octopus on it

Dream come true: Charlize adopted Jackson in 2012 after trying to adopt for a long time; the young boy held his mother's hand as he wore a yellow shirt with an octopus on it

 

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