Ashton Kutcher "dotes" on Mila Kunis.

Mila Kunis

Mila Kunis

The 'What Happens In Vegas' star - who is expecting his second child with the 'Jupiter Ascending' actress - will do anything he can to make sure his wife is as comfortable as she can be.

A source said: "They are very excited about baby No. 2. They wanted their kids to be close in age and Wyatt will be just over when the baby is born. Ashton and Mila both enjoy parenting and spending time with Wyatt more than anything else, so they are thrilled to be adding to the family.

"She is feeling good, although taking care of a toddler while pregnant is different for her than the first time around, where she could rest a lot more. Ashton dotes on her though. He always carries Wyatt and doesn't want Mila doing any lifting at all. He has always been very hands-on, but he has really been taking over lately and trying to give Mila a break."

And the happy couple - who already have 20-month-old daughter Wyatt Isabelle together - aren't planning on slowing down with their day trips with their daughter whilst Mila's pregnant.

An insider added to E! News: "Ashton and Mila do everything together with Wyatt. They are always doing family lunches, trips to the zoo and taking Wyatt to dance class together.

"They are close with their families and always have them around as well. But they also have alone time where they are baby-free and all about each other. They have a good balance."

And the 38-year-old actor is a "natural" father and is incredibly excited about the new baby.

A source said previously: "Ashton genuinely lights up when talking about Wyatt and the little one on the way. Everything about being a father is natural to him."