The pic that shows Jude's in love

In the afterglow of their engagement, they are closer than ever.

On holiday in Mexico, Jude Law and Sienna Miller showed just how close with a very public display of affection.

Perched on her fiance's knee, 23-year-old Miss Miller kissed and cuddled him as they sat at a table on the beach.

'They could not keep their hands off each other,' said one onlooker. 'Sienna was either touching or sitting on Jude's lap almost the entire time.'

Law, 32, separated from his wife Sadie Frost, with whom he has three children, after six years of marriage in February 2003.

He started seeing Miss Miller, who he met on the set of his movie Alfie, in September of that year. He proposed to her on Christmas Day and presented her

with a dazzling diamond engagement ring. Miss Frost, who has been seeing guitarist Jackson Scott, 15 years her junior, is expected to make her own announcement soon.