Mila Kunis introduced Ashton Kutcher to her parents last weekend.

The 'Ted' actress and the 'Two and a Half Men' star were spotted strolling through London on Saturday (18.05.13) with Mila's mum Elvira and dad Mark, and they spent the evening watching 'Billy Elliot: The Musical' at the Victoria Palace theatre.

The morning after, Ashton, 35, decided to cook up a traditional English breakfast for his girlfriend's parents and sought the best quality ingredients - including bacon, sausages and black pudding, which is made from pigs' blood and oatmeal - for the tasty dish.

A source said: ''Ashton thought it would be nice to lay on a good old English fry-up. It was knocked up in one pan.''

Their weekend in the UK capital continued in the afternoon when the four of them headed out for dinner at the Duck & Waffle restaurant in Heron Tower - the same hot spot where Mila and Ashton enjoyed the company of Britain's Princess Beatrice and her boyfriend Dave Clark the weekend before.

Mila, 29, is currently shooting her upcoming movie 'Jupiter Ascending' in the city and the couple have been staying in Hampstead, north London, which is near the shooting location.

Ashton started dating his former 'That '70s Show' co-star a few months after he split from wife Demi Moore in November 2011.

Demi and Ashton are still trying to finalise their divorce settlement and the 50-year-old actress is reportedly demanding an extra $10 million from her estranged spouse due to his involvement in new technology start-up investment firm A-Grade, which she believes she is entitled to a percentage of the earnings.