PHOTO: Blac Chyna Shows Off Her Booty on a Yacht for America!..Bongo hot

Blac Chyna's not waiting for Memorial Day weekend to show off her patriotism ... or her bountiful booty.

It's safe to say BC's feeling confident with her post-baby bod, flaunting a thong swimsuit on a yacht in Miami for a photo shoot. She brought along Old Glory for some of the shots, because ... 'Merica!

Chyna also got to ride around on a jet ski during the shoot. Not a bad follow-up gig to judging a twerk contest.

Dream's mama is living her life.