The former Miss Wales is currently taking a break with friends and family - including her daughter - in America's 'sin city' and posted a selfie flaunting her newly-toned post-baby figure (July 19).
Wearing a snakeskin bikini and Aviator sunglasses, Imogen looks every inch the yummy mummy.
She's worked hard to get back in shape after giving birth in February, and recently admitted that she's managed to get back into her pre-pregnancy size 10 clothes.
Imogen also posted pictures of herself and a friend enjoying cocktails in a palm tree-lined swimming pool.
But her gorgeous baby daughter was far from forgotten, as the next day Imogen posted a super-cute snap of Ariana keeping cool in a white sunhat.
Imogen captioned the photo: "Little miss chubby chops."
Before setting off on her hols, Imogen made her feelings known on Kerry Katona's bankruptcy, saying: "Just seen Kerry Katona in a mag talking about her money problems. Zzz!! Just how??! I've come from nothing… I don't understand! Priorities!"
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