Mila Kunis is excited about her new friendship with Britain's Princess Beatrice.

The 29-year-old star met the young royal after being introduced to her by boyfriend Ashton Kutcher - who is friends with Beatrice's partner Dave Clark - and a source has revealed the friendship is ''a total head-trip'' for her.

The source told Heat Magazine: ''Ever since Ashton was chosen to become the 500th space traveller on the Virgin Galactic last year, he's become friends with Dave, who is head of astronaut relations.

''It isn't just a superficial friendship, they get on really well, as Dave introduced Bea to Ashton and Ashton introduced Mila to them. Mila is impressed with the royal family, respects their tradition and watched every minute of Kate and Wills' wedding, so being friends with Beatrice is a total head-trip.''

The 'Friends With Benefits' actress is currently in the UK shooting movie 'Jupiter Ascending' and the two couples recently enjoyed a night out in London visiting several bars and restaurants including East London bar Callooh Callay.

The source also revealed Dave is keen to arrange further meetings between Mila and Beatrice while they are both in the UK.

The insider added: ''While Mila is filming in London, Dave is determined to get the girls together, as Mila is by herself a lot.''