Cruz Beckham, 19, packs on the PDA with girlfriend Jackie Apostel, 29, as she displays her surgery scar in a backless top during a family day out on a superyacht in Miami

Cruz Beckham couldn’t keep his hands off his girlfriend Jackie Apostel as they packed on the PDA on a superyacht in Miami on Monday.

Cruz, 19, and Jackie, 29, looked more loved-up than ever as they kissed during the trip out to sea where they were joined by his parents David and Victoria.

During the outing, Jackie, who is a decade older than Cruz, wore a backless top that displayed the surgical scar on her back, which she recently opened up about.

The couple were seen hugging and kissing each other as they relaxed and soaked up the sun while lying on a deck.

Jackie was later seen straddling Cruz as the couple kissed while sat at a table inside the boat.

Cruz cut a casual figure for the day out in a red sleeveless T-shirt which he teamed with black shorts.

Meanwhile Jackie donned an oversized sports T-shirt before removing it revealing the black strapless top which she teamed with white shorts and a baseball cap.

Cruz later showed off his abs as he removed his T-shirt while he and his girlfriend lay at the stern of the boat soaking up the sun.

The couple were joined on the outing by his parents, former footballer David, 49, and fashion mogul Victoria, 51.

David was spotted wearing a pair of blue swimming shorts and black T-shirt as he chatted away to the couple at the back of the boat.

Elsewhere during the day, Victoria was seen enjoying a refreshing drink with her youngest son and his girlfriend.

Cruz and Jackie looked completely smitten with each other as they cosied up while relaxing on a sunbed on the yacht.

The Beckham’s outing comes after Jackie shared a shocking photo of her post-surgery scar on Sunday as she revealed three months ago she had to relearn how to walk after a mystery ordeal.