News: Uh Oh: Ashton Kutcher accused of cheating on Mila Kunis with make-up artist

They've just welcomed their first baby together but a new report claims Ashton Kutcher shared an 'intimate embrace' with a young blonde in the early days of his romance with Mila Kunis.

The 36-year-old actor was first romantically linked to Mila, 31, in April 2012 but they only went public in July and make-up artist Linn Massinger alleges she went back to Ashton's Hollywood home that June after meeting him in a bar.

Linn, then 21, told The Sun that after chatting for some time back at his place, 'He just took my hand and took me upstairs,' before they shared their 'intimate embrace'.

She provided the paper with pictures which appear to show her and Ashton, who was sported a beard and longer hair for his upcoming role in the Steve Jobs biopic, cuddling in bed together.

The Swedish woman claims she spent the night at Ashton's £6 million home but he made no mention of Mila, who he got engaged to in February 2014.

She said: 'When I was there he didn't mention Mila or anyone, I hope he thought I was a nice girl.'

Star magazine in the US revealed details of how Ashton and Linn allegedly met.

A source told the publication: 'Ashton was giving Linn the eye from across the bar. He waved them over to where he was sitting with his friends and introduced himself as Chris - his real first name.'

After the group went back to Ashton's home, the duo allegedly started 'making out'.

The insider explained: 'After a while, the other people began to leave, and Ashton took Linn into his cinema. They started making out — and then things started heating up.'

This isn't the first time Ashton has been accused of cheating.