Model Agyness Deyn. Photo: SRV/EVA/

Sister, sister!

Fashion has a new sister act du jour (sorry, Mulleavy girls): supermodel Agyness Deyn and her designing sister Emily.

Proving that Aggy isn't the only Deyn offspring with a knack for fashion, her kid sister Emily has designed a new collection of tees for Uniqlo featuring Polaroid shots of the sisters romping around New York City, Grazia reports.

Set to launch on April 30, the collection came about after Uniqlo contacted Agyness about designing for them, at which point she hooked up her sis, according to the magazine.

Wow. No sibling rivalry here.

It's not the first time the model has pimped out her artistic sibling. Emily and pal Aliyah Hussain reportedly landed a designing gig for the charity MAG after Agyness rocked their Queen t-shirt backstage at Anna Sui.

Sheesh. Any chance the Deyns are looking to adopt... us?

Meanwhile, get the scoop on Agyness Deyn's ultra-short cropped 'do.