AceShowbiz - Heidi Klum's daughter is getting more and more smitten with her boyfriend Aris Rachevsky. While they were on vacation in Sardinia, Italy, the rising model could be seen enjoying a steamy dip with the musician.

On Saturday, June 22, the 20-year-old beauty and her beau were captured kissing in and out of the water. At some point, the young couple was seen smiling while hugging each other tightly.

For the outing, Leni rocked a cheeky burgundy bikini that she paired with sunglasses. Her longtime boyfriend, in the meantime, only wore a pair of striped swim shorts.

Just a few days prior, Leni and Aris were photographed soaking up the sun and enjoying the fresh ocean breeze in the European country. In one of the photos, Leni was pictured placing one of her hands on Aris' shoulder as she held her smartphone with her other hand. The son of Los Angeles talent agent Rhea Rachevsky, meanwhile, was caught on camera apparently kissing her neck while putting his hand on her waist.

Another snap from the sunny day at the beach captured Leni and Aris getting closer to the water. While she was sitting on rocks, he was seen taking a picture of her. Attempting to block her face from harsh direct sunlight, she placed her hands on her forehead as she struck a pose.

For the beach day out, Leni flaunted her jaw-dropping figure in a black bra top that came with a halter neck design and colorful patterns all over it. To complete the look, she rocked a pair of skimpy matching undies.

During the getaway, Leni and Aris appeared to have been joined by her mother Heidi and stepfather Tom Kaulitz. That same day, the media outlet released pictures of the wedded couple having a blast at a beach in Sardinia, Italy.