Attention, hot British actor Alex Roe -- GABBY DOUGLAS WANTS A PIECE!!!
For those unfamiliar, Roe's the super handsome 26-year-old star of that movie, "The 5th Wave" ... and Gabby likey.
In fact, when we saw the U.S. Olympic legend in NYC -- not only did she tell us she wants to work with the guy in front of the camera ... but she wants a crack at dat ass too!
Don't be stupid, Roe ... these kinds of opportunities don't come knocking down your door every day!!!!