Toe curling: Ageing rock star Sting caught sucking wife Trudie's feet

Toe-curling: Sting shares an intimate moment with Trudie (and Sydney Harbour)

As a display of affection, it could hardly have been more public.

Docked in Sydney harbour on a hired yacht costing £17,500 a day, Sting gently raised Trudie Styler's left leg to his mouth - and sucked her toes.

The Police singer, whose personal life has been surrounded by rumours of tantric sex and swingers' parties, also found time to massage her feet as she reclined on a sunlounger.

A friend said: "Most of this year has been pretty dreadful. Yet they have come to realise they really do have a lot to celebrate.

"Sting's comeback with The Police has been an enormous success. The band made £65million.

"They see their strength as a couple as being the reason behind their triumph over adversity. Trudie suggested they should do something to recognise that."

Notorious for their liberal approach to sex, the pair recently flung open the doors of the £12million Manhattan apartment for an "at home" newspaper feature - with eyebrow-raising results.

The centre piece of their sumptuous 18-room residence overlooking Central Park is an extraordinary scarlet bedroom embroidered in gold and dominated by two explicit Helmut Newton prints.

Artistic licence: Trudie Styler says the artwork in the couple's bedroom makes her feel 'hot'

(Source: Daily Mail)