Free images results:

Twin pictures, stock photos and images


Razor Stock Images
Author: Yanc
Turtles Stock Photography
Author: Ichtor
Frog Royalty Free Stock Images
Author: Chuew
Dry Leaves Royalty Free Stock Images
Author: Ichtor

Also, here are some commercial RF-licensed images that match your search criteria:  
Twin cats Royalty Free Stock Photography
Author: Linqong

Explore more commercial options: More Twin Stock Illustrations & Vectors | More Twin Stock Video Footage