An amazing video shows how deep that bond is, even before birth: newborn twin boys refuse to stop cuddling each other as they did in the womb.

Having twins can be incredible, having someone with you from the very beginning, a relationship that lasts a lifetime.

The twins are being given a special infant bath, developed by Sonia Rochel, a maternity nurse, and grandmother from Paris, France.This technique is designed for babies under two months old because it aims to recreate the feeling of being in the womb.

Ms. Rochel made the clip public to showcase ‘The Thalasso Baby Spa’ – a small bathtub and shower unit she designed for babies to replicate the feeling of being in the womb.

At one point, water is carefully showered over their foreheads and eyes, while their noses and mouths remain above the surface so they can breathe with ease. At the end of the clip, the pair of infants are scooped out of the bath, placed on a mat, and wrapped in towels to dry.

They were just a few days old when they experienced the bath at the maternity clinic where they were born Ms. Rochel told Today.com. They are now around one month old.Viewers have deemed her video ‘beautiful’ and ‘amazing’. One wrote: ‘I think [the twins] are just incredibly at peace here: warm water and very close to each other gives them the soothing feeling they endured for 40 weeks and what they are used to.’

Another woman said the video made her feel broody. ‘Amazing, makes me want to make a baby.’