www.fushigishop.bigcartel.com. I love anatomical heart prints, and this one has been enhanced with a splash of colour, flowers, birds, fish and other oddities.
The leggings are Black Milk Circuit Board Red leggings. These are now sold out in everything except an XS size, but are rumoured to be coming in a green version soon. I love these. They're a bit Tron-meets-Borg.
I like this for lounging about it (for going out I'd add some sort of plain black skirt - can't quite go with leggings as trousers, even with Black Milk ones).