There have been numerous rumors that the two had secretly gotten married, but neither star has confirmed this.
The professional tennis player gave birth on Saturday in Miami, giving the first-time parents Lucy and Nicholas. The news came as a surprise, since the notoriously low-key couple did not made it publicly known that they were expecting.
Both have stated in the past that they were interested in becoming parents.More news: Synaptics' in-display fingerprint scanner will debut in a Vivo phone
However, the couple did share a few fun pics on social media from their Miami vacation before welcoming the twins!
Enrique Iglesias had one of the most-watched music videos on YouTube this year, but it looks like the 42-year-old might have an even bigger reason to celebrate now. Iglesias also posted a photo from the boat of himself.
In 2011, Iglesias also may have slipped a confirmation of their status when he introduced Kournikova during a concert in Russian Federation as his wife. "I'm in a happy relationship - that's all that matters... Besides we are just fine with sex and love", he told Latina magazine. "I don't believe you need a piece of paper to show you love someone". "Who knows what the future holds...or the past", he said, laughing. Pictured: The celebrity couple attending Venus Williams vs. Serena Williams match at the Sony Ericsson Open at the Crandon Park Tennis Center in Key Biscayne, Florida on April 2, 2009.