Irina Shayk was best known as the girlfriend of soccer superstar Ronaldo Cristiano until she landed the cover of Sports Illustrated’s swimsuit issue. Now she’s climbed to the top rungs of supermodels.

She’s more than worthy, judging from her new Luli Fama 2011 Swimwear campaign.

Shayk, 25, shows off a range of suits for the Miami-based brand. David Tessieri was behind the camera.

The Russian-born model is currently suing GQ magazine for publishing retouched nude photos of her, but she shouldn’t have any complaints about these photos.

She seems to have an aura about her. Call it a sexy glow, which may have something to do with the latest rumor.

Check out Irina’s photos; click to enlarge.

Portuguese newspapers reported in February that Ronaldo, 26, was expecting his second child with his Russian girlfriend. But if she’s pregnant it’s not showing.

What is showing is an engagement ring. The Real Madrid striker is said to be planning a summer wedding after proposing to the underwear model on Valentine’s Day.

Ronaldo is said to have jetted 4,000 miles from Barcelona to New York to get down on bended knee.

Both Ronaldo’s and Irina’s reps have refused to confirm or deny the marriage or pregnancy rumors. But one thing can be said, the relationship seems to have staying power.

They have been dating for ten months, and for Ronaldo, a serial womanizer, that says something. Check out Irina’s photos and behind-the-scenes video.