January Jones Wishes Son Xander a Happy Fifth Birthday: ‘I Became Whole Because You Came Into This World’

09/14/2016 at 02:15 PM ET

January Jones son birthday
January Jones/Instagram

Happy birthday, Xander Dane!

January Jones took to Instagram Tuesday to wish her only child a happy five years on Earth, sharing a sweet throwback snap of the twosome looking giddy.

“This one goes out to us my son,” the Mad Men alum, 38, captioned the photo. “5yrs ago today I became whole because you came into this world.”

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This one goes out to us my son.. 5yrs ago today I became whole because you came into this world.

A photo posted by January Jones (@januaryjones) on

The mother-son duo is very close — so close, in fact, that they share a beauty routine, including bath time.

“I like having my baths, and he takes them with me,” the actress, who currently stars in the Fox series The Last Man on Earth, told PEOPLE in May.

“When we go to the barbershop, he gets to choose his own hairstyle, and he gets a kick out of that and he takes great pride in that,” the proud mama added at the time. “I may be over-grooming him. I don’t know!”

When the guy you love thinks you're cray but kisses you anyway

A photo posted by January Jones (@januaryjones) on

And according to his mom, Xander is exactly halfway to being able to achieve a big goal he’s had his eye on for at least a year.

“We read a lot of books about sharks and dinosaurs. He wants to go swimming with sharks with me, but I’ve told him he has to wait until he’s 10,” Jones told PEOPLE in 2015 of her then-4-year-old son.

Jen Juneau

FILED UNDER: January Jones , Kids , News

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Showing 7 comments

Xzx on

THOT

guestie on

I see a lot of Sudeikis there but then it could be Flay. I completely rule out Groban…

Betty on

But who’s the daddy???

Robin on

She takes baths with her five year old son? I hope their both wearing bathing suits.

Esme on

What’s wrong with taking a bath with your 5 year old? He’s 5…hasn’t hit puberty yet! I love his name:)

Grow up. on

The person who takes the statement about her and her son bathing together and makes it sexual or dirty has massive problems. Who cares. It’s a bath. I can guarantee that MANY MANY MANY children for decades and centuries have been taking baths or showers (if they could afford it) with their parents when they were younger. And I find it sick that people look at those things that are incredibly innocent and turn them perverse.

marilyn on

So beautiful, what a delightful little boy.Wishing them both lots of love.