The 29-year-old singer - who recently split from fiance Tom Crane - revealed her bandmates Nicola Walsh, Cheryl Cole, Kimberley Walsh and Nadine Coyle have been supporting her through the break-up and they have all been excitedly discussing the reunion for their 10 year anniversary next year.
Sarah told the Daily Mirror: "We've all been in contact over the last couple of weeks. It's hard to get all of us together but we are all having dinner together next week.
"It'll only be four of us as Nadine's still in the US but she's coming back at the end of the month.
"We reminisce a lot when we're together - we talk about being on tour. It's been a while, and I'm getting itchy feet."
Although details have not yet been finalised, Sarah is ambitious for the Girls Aloud reunion, revealing she is hopeful for more number one singles.
She explained: "We don't know exactly what we'll do yet, that's what we're trying to figure out. We'll do what we're good at and hopefully get some more number ones."