Talk about an All-American hottie!

Lauren Bush-Lauren, the niece of former President George W. Bush, stripped down while vacationing with her hunky hubby in Jamaica over the weekend, revealing her fabulously fit bikini body, and RadarOnline.com has the sexy shot.

Bush and her husband of several months, David Lauren, were joined by Paul McCartney and his wife Nancy, and David’s father, fashion designer Ralph Lauren, on their luxe tropical vacation.

The founder of the charitable organization FEED took her husband's name, making her Lauren Bush-Lauren.

When Lauren Bush and David Lauren said "I do" on Sunday, it was a merger of dynasties.  She's the niece of former president George W. Bush.  He's the son of fashion mogul Ralph Lauren.

The couple, who first met in 2004, became engaged last year.

Among the wedding guests were the bride's cousins, former First Daughters Jenna and Barbara Bush, plus former President and First Lady George W. and Barbara Bush, and another uncle, former Florida Governor Jeb Bush.

The ceremony took place at the 1,700 acre Double RL Ranch owned by Ralph Lauren and his wife Ricky, in the Colorado Rocky Mountains.

The bride's father Neil Bush walked Lauren down the aisle.  She was appropriately attired in a wedding gown designed by her new father-in-law.

And just in case you're wondering -- and we know you are -- the bride will now be known as Lauren Bush-Lauren.

Congratulations to them both.