Paddy and Christine McGuinness" life was "turned upside down" when they found out their twins have autism.
The 29-year-old model - who has four-year-old twins Leo and Penelope with the "Take Me Out" presenter - knows it is her "purpose in life" to look after her kids and ensure they fulfil all their hopes and dreams.
She said: "When my husband and I were first told out twins had autism, it turned out world upside down. I knew it was my purpose in life to be their mum but this really made me want to be the best mum I could be for them. I got so many hopes and dreams for our children. I want them to build relationships when they're older ... maybe even get married and have their own little families one day. Most of all I want them to be happy. I want them to live in a world where there is more understanding about autism."
And Christine is desperate to help "shape the future" for her twins and others suffering from autism.
In a fundraising video for Autism Together's Future 50 appeal, she added: "When you learn that autism is in your life, as I have recently, you realise that it is up to you to help shape the future for the people you love. This is a brave project being run by people who really care and as soon as I heard about it I knew I wanted to support it. I hope in fifty years" time - or even sooner - this technology will be in use everywhere."
It comes after Christine admitted she felt a "sense of loss" when her twins were diagnosed with autism.
She said: "I think there is a sense of loss when your child is diagnosed with autism. The things you plan out, what you think you're going to do, go to Butlins for the weekend, go to Blackpool or holidays, you realise actually those things might not happen as it would normally. But that was when we first found out. But now I've done my research, and I know a lot more about it, I'm really confident that I'm the right mum for these. I know I can give them a really good life. I know with lots of planning, lots of research into everything and preparing the twins I know they can do anything."