Photogs snapped the loved-up couple enjoying a yacht day in Italy on the last day of summer Monday … and, as you can see, they’re getting down and dirrty!
At one point, Xtina jumps into her longtime love’s arms … wrapping her legs around him, throwing her head back and grabbing his butt.
In another shot, the lovebirds are sharing a sweet smooch aboard the boat. Matthew also goes for a quick dip in the water as Christina lounges on the deck.
Seems they’re both quite the handful.
The pop powerhouse was a wonder in white — pairing the all-white ensemble with a blue bandana reminiscent of her “Dirrty” days.
It sure looked like she and Matthew were having a great day out on the water … that’s amore!!!