This is the touching moment a bridegroom asked his step-daughter to be his child for life as he gave her a ring to seal the vow at his wedding to her mother in Brazil.

Kneeling down to the little girl's height, Diogo Bolant, 37, surprised six-year-old Isadora with the amazing question.

'I want to ask you something,' he said during the cute gesture in front of the altar and their guests at the wedding in Sao Bernardo do Campo, Sao Paulo, last Saturday.

Kneeling down to the little girl's height, Diogo Bolant, 37, surprised six-year-old Isadora by asking, 'Do you agree to be my daughter forever?'

'Do you agree to be my daughter forever?' he asked Isadora.

The child, who was the maid of honour for her 27-year-old mum Nicole de Souza, did not hesitate as she answered 'yes'.

Bursting into tears, Isadora sobbed uncontrollably as her new step-dad took a ring out of a box and slipped it onto her finger.

The pastor, giving his blessing to the vow, said: 'So seals the alliance.'

Overcome with emotion, Isadora at first buried her head into her mum's wedding dress.

Then, realising how special the moment is, she fell into her new dad's arms, hugging him as she cries on his shoulder.

He kissed her gently on the cheek as her mum held her tearful daughter's hand to reassure her.

The tender moment was filmed by the Blessed Space Company wedding organisers, who hosted the ceremony at their venue.

Edilaine Gaeta, commercial manager for the company said: 'This was all pre-planned.

'In one of the meetings before the wedding Diogo said he wanted to do a surprise for Isadora, who is like his daughter.

Bursting into tears, Isadora sobbed uncontrollably as her new step-dad took a ring out of a box and slipped it onto her finger

The child, who was the maid of honour for her 27-year-old mum Nicole de Souza, did not hesitate as she answered 'yes' and the pair embraced

The tender moment was filmed by the Blessed Space Company wedding organisers, who hosted the ceremony at their venue

'The little girl had no idea this was going to happen. All the guests and our team of organisers knew and were thrilled and close to tears too, even though we were in on the secret beforehand.'

The video posted on Facebook has received over nine million views in the space of a week.

The impact has shocked the newly married couple who are currently on their honeymoon in Cancun, Mexico.

Nicole said to Brazilian newspaper Extra: 'Wow! What a surprise the video has been. We had no idea it would make such an impression.

'We wanted Isa to participate in our wedding ceremony because she is at that phase where she loves all things about princesses and is in love with the idea of being a bride.'

Describing her daughter's relationship with her new husband, who she has been with for three years, Nicole said: 'Isadora has a biological father who is present in her life and no one can take that relationship away from her.

'However, Diogo has this love, a true love, and affection for her [Isadora] which is bigger than any title,' she added.

Nicole said Diogo has always had a good relationship with her daughter and Isadora even calls him dad.

Nicole said Diogo has always had a good relationship with her daughter and Isadora even calls him dad

Diogo said: 'Isadora always wanted us to get married. And I wanted to do a special tribute for her so she felt part of the moment in front of our guests'

Diogo said: 'Isadora always wanted us to get married. And I wanted to do a special tribute for her so she felt part of the moment in front of our guests.

'I had this idea of a surprise with Nicole a little while ago. It was so Isa could feel part of this family that is forming.'

The Sao Paulo businessman said he was 'surprised by all the repercussions' that had been positive and encouraging as he didn't think the video was going to be so popular.

Online comments included congratulations to Diogo for his 'wonderful attitude' and emotional words from those who were moved by the 'amazing gesture'.

Owner of Blessed Space venue, Katia Araujo said: 'I filmed this on my mobile as it was such a beautiful scene. We're used to seeing doom and gloom and this was so uplifting.'