Victoria Beckham Stretches It Like Beckham

Kids, here's how you make a 90 degree angle ... courtesy of Victoria Beckham's extremely limber and hot legs.

The former Spice Girl turned fashion designer posted the pic with the caption: "It's amazing what you can do in culottes . . . those ballet classes are paying off!"

Posh is reportedly passing on a planned Spice reunion. Shame for all that flexibility to go to waste.