Ugly Betty costume designer Eduardo Castro speaks out about her tiny frame

Victoria Beckham shocked Ugly Betty costume designer Eduardo Castro when she revealed her 23in waist.

The Spice Girl – who debuted on US TV last night as Wilhelmina’s bridesmaid – has an hour-glass figure that many Hollywood star would kill for.

‘Her waist was around 23in, which is very, very tiny,’ he reveals.

Posh, 33 – always the professional – took along her own collection of designer gear to her costume fittings.

‘A lot of the shoes were her own,’ Eduardo tells

‘She had a lot of Jimmy Choos. She brought sunglasses, she brought a belt. We were both on the same page. It just worked really well.’

SEE VIDEO of Victoria Beckham starring in Ugly Betty…

Alison Adey