Messages of congratulations quickly began to flood in for the pair who met in 2012 when Sarah worked as a backing dancer for JLS. This secret has been so hard to keep, but I'm so excited to finally be able to share the news with everybody that me and my beautiful lady @sarahlourichards are going to be parents!!!!!!
The former JLS star took to Twitter to share his exciting news with fans on Sunday, admitting that he has struggled to keep his baby joy a 'secret'.
After seeing his pal and JLS star Marvin Humes get married and settle down with kids, we asked Aston if he was planning to take his relationship to the next level.
However, he didn't seem that keen, as he told us: "When people ask that question I don't really get it. As and when."The star continued: "I know what girls are like, but she's a good one.
They may have been dating for five years, however, the couple do not seem to have any plans to marry.
Earlier this year, talking about popping the question, Aston told the Daily Star: “When people ask that question, I don't really get it. There's no pressure there as she's still got a lot of stuff to do, as well as I have.” You can keep up to date with all Aston and Sarah’s baby details here.