This picture makes us feel all warm and fuzzy.
Nick looked utterly dashing in his light three-piece linen suit, white T-shirt and slip-ons, while Pixie rocked it in a House Of Holland mini emblazoned with the words 'Subscribe!' and scarlet bow-embellished heels.
We're definitely subscribing to this party style.
See more pretty guests at the Serpentine soiree in our gallery.