US step mum cries tears of joy as identical twins ask her to adopt them on Mother's Day

This is the moment identical twins asked their step mum of 12 years to legally adopt them - as a special surprise on Mother's Day.

Julianna and Gabriella Ruvolo, 20, immediately felt a connection with step-mum Becky, 37, when their dad, Pete, 50, introduced them to her over a decade ago.

A few months later Pete introduced Becky to his eight-year-old twin daughters, who were excited to meet their dad's new girlfriend.

But the trio got on famously, and soon Julianna and Gabriella began calling Becky 'mum'. 

And, as a special surprise for Becky on Mother's Day, the twins decided it was the perfect time to ask her to legally adopt them.

The book includes photos from countless holidays and family outings over the years, and on the final page reads 'Mum, Will you adopt us?'.

Becky, a stay-at-home mum, said: "It was the best gift a mum could ask for and I can't put into words how special that moment was for me. 

"The video is something we'll cherish forever and we're so excited that we get to share it with the world."