Sexy tennis star Anna Kournikova and her boyfriend, pop singer Enrique Iglesias, are enjoying their happy life in the warm Miami weather with a boat ride on Thursday morning.

In the boat, Anna wore a tiny white bikini, and Enrique had a shirt on, reported. The couple were expressing their love with plenty of PDA - they kissed each other and there's also a moment when Enrique even kissed Anna's belly.

Meanwhile, despite, Anna's pregnancy rumors circulating, the couple are keeping silent about their lives.

Currently, Anna has quit from The Biggest Loser as trainer only after one season.

I enjoyed my time on the Biggest Loser ranch. Although I will not be returning as a full time trainer on season 13, I will always be a part of The Biggest Loser family and my commitment to bettering lives through health and fitness will continue, Anna told The Hollywood Reporter (THR).

According to THR, the contestants thought Anna was a bit brash, for she didn't sympathize with her overweight contestants. When they complained about training being hard, Anna always told them about her own tough upbringing.

On the other hand, Enrique is proud of his success - he has been nominated for favorite Latin music artist at Sunday's American Music Awards.