Madonna's sons David Banda and Rocco wear matching outfits on night out in New York

They've spent the last five years getting used to one another.

And it seems the brotherly bond between Madonna's two sons is as strong as that of biological brothers.

Rocco, 11, and the pop star's adopted Malawian son David Banda, 6, both stepped out all in white for an evening out in New York with their mother, sisters Mercy and Lourdes and Madonna's boyfriend Brahim Zaibat.

David was dressed like a rather smart young man in a white cap, long-sleeved polo top, jeans and Nike air max trainers.

While his brother went for more of a 'street' look with his hooded top, tracksuit bottoms, baseball cap and trainers. He added a black rucksack to the ensemble for that authentic hip-hop look.

Meanwhile their mother stuck with her favoured black wearing a three-quarter length jacket with a pair of grey tracksuit bottoms.

The 53-year-old appeared a little camera shy as she walked hand-in-hand with her adopted son, David.

At one stage David, who was adopted in 2006, took a piggy back from Madonna's beau Brahim, proving how close the dancer has become to her family.

And little Mercy, who is six years of age, was carried along by the family's nanny.

Lourdes, the oldest of the children, wore a fitted leather biker jacket with a leopard print top, black jeans and heels.

The 15-year-old has her own fashion line, which she runs with her mother.

And now, with teen label Material Girl already a success, Madonna has announced the launch of a second label, Truth or Dare.

This time, though, she will be focusing on an older audience, with a target market of women aged 27-50.

The 'lifestyle brand' is due to launch next year with a fragrance and accessories.

An image of the bottle was released today - a minimalist, hexagonal white bottle with gold cap and simple, geometric logo.

Shoes, handbags and lingerie are expected to follow.

Madonna said that she had been approached many times in the past to create her own brand, but only now was the timing right.

She told WWD: 'Over the past several years, I have been approached countless times to create my own brand.

'The timing is right and I have found great partners in Iconix, who can help translate my vision to reality.'