Team USA Olympians -- GIRL-ON-GIRL FREAK DANCING ... On White House Lawn

It's the very spot where Nixon peace'd out ... where FDR's kids played ... but last week, the storied South Lawn at the White House turned into a dance floor for a Team USA grind session!!

More than 200 Olympic athletes visited 1600 Penn. to meet with the President and the First Lady the other day, and during the down time, Kate Hansen (luge) and Jazmine Fenlator (bobsled) decided to get freaky with each other.

Both Kate and Jazmine became Olympic celebrities for their dancing in Sochi -- Kate famously bump'd and grinded as a pre-luge warm-up and Jazmine was involved in a dance-off with a member of Team Jamaica.

God bless America.