Buy lingerie as a gift and there's a 27% chance she'll take it back to the shop. Here's brief guide to getting it right.
The classic Marilyn Monroe frame. Her chest and hips are close in size, but her waist curves inwards between them.
Lingerie pattern cutter Josefine Wing says keep her midriff bare to enjoy the "full effect" of her silhouette. High-waisted briefs, French knickers and thongs work well.
"Traditional 'boyshorts' will square-off her hips in an unflattering way", says lingerie designer Sara Caspi. Stick to the more feminine designs.
"She's lean, with her hips, waist and chest all measuring roughly the same," says Caspi.If she's tall, she's got the supermodel build.
'You don't need to spend a fortune to highligh her assets. High-street styles such as teddies and cut-out body suits will add curves that'll make her feel good," says Caspi.
Padded Bras. "They're pointless and will likely cause offence," says Helen Spencer, head of lingerie buying at John Lewis. Opt for softer lacy cups instead.
"She has a narrow waist and smaller bust with a more ample lower half, especially in the thigh and bottom area," says Caspi.
"Try lighter colours and lace on the top half to draw attention to the bust and away from her hips," says stylist Ceril Campbell, also known as 'The Gok Wan of Smalls'.
Less is not more when it comes to buying underwear for an A Frame. "Street clear of cuts that won't sufficiently cover her derrie(check the e)re," says Spencer.
"Women with an O Frame have a fuller bust, midsection and hips, but more slender shoulders," says Caspi.
Wing suggests retro lingerie for this shape, which "smoothes the figure". A burlesque-style outfit with suspender belt and stockings will work in her (and your) favour.
Buying underwear specifically designed to minimise her curves. "She'll buy shapewear herself; it should never come from you". says Campbell.