Ever jump clear over YOUR OWN GIRLFRIEND for fun?
Guessing the answer is, "hell no" -- unless you're Simone Biles' BF, Stacy Ervin Jr.
Here's Stacy -- a former Team USA gymnast -- and Simone having an average day at the office ... seeing if Stacy can box jump the entire height of his boo -- who he's been IG official with since last summer.
Dude clears it with ease -- but says Biles was "only a little impressed." (WHAT)
Yeah, she's only 4'9'' ... but that's some damn impressive ups.