Frankie, who is expecting her first child with her footballer fiancé Wayne Bridge, is currently in Spain with her sister Tor (Victoria) and a gang of friends.
Posing for a group photograph together, Frankie looked glowing as she stood smiling next to Tor and their pals in the glorious sunshine.
The Saturdays star, 24, covered her bump in a floor-length one shoulder red dress featuring a big frill around the neckline. The gorgeous holiday frock also featured a pretty little tie over her tummy.
Singer Frankie kept her new long hair loose around her shoulders and swept it into a side parting.
Frankie tweeted the picture to her fans with the caption: "Holiday fun with these guys! #friends #babymoon ❤" Gorgeous!
Check out more stars who are expecting babies in our gallery below!