The former Miss Wales, 30, wore a sunset-coloured dress from Danni's Dress Room when she ate in one of her favourite restaurant's Nobu and had drinkies at the May Fair Hotel bar last night (August 2).
The dress, which had side fringe detail, showed off her killer post-baby body, which she's worked hard to achieve since daughter Ariana Siena was born in February.
After her girlie night out, Imogen tweeted: "Wow! Amazing night with my girls xxx hope your all having a fab night xx."
Daughter Ariana was safely tucked up in bed.
Hours earlier, Imogen had shared a super-cute picture of the six month old with the message: "Bathed and ready for bed."
Ariana is Imogen's first child with city trader boyfriend Adam Horsley.
Do you like Imogen's fringed dress? Tell us below!