Ricky Martin wants 'maybe three' daughters.

The 42-year-old singer is father to six-year-old twin boys Matteo and Valentino, who were born via surrogate. He can't get enough of parenthood and would love to add to his brood; something his kids would like too.

'Not one, not two, maybe three!' he laughed to ET, when asked if he'd like a little girl. 'I don't know, but I'm really looking forward to it. Parenting is a very big responsibility, but I love every single minute of it they are my inspiration.'

Now his sons are getting older they have started to ask Ricky questions. Recently one of the tots quizzed him on whether he had been in Ricky's tummy when he was a baby, with the Puerto Rican singer determined to be as truthful as possible with him.

'Nowadays they're asking a lot of questions and one thing I promised myself is to be completely honest with them," he explained. "Whenever they ask me a question, I will answer with the truth. Until they get the entire information. For me it's very important for them to know where they're coming from.'

Ricky is gearing up for his new single Adios to hit the charts. It's a fusion of Latin and French music and he's sure his audience will love it.

The star took the unusual step of releasing bits of the promo via his Twitter account, something he thinks other artists will do going forward.

'It's about uniting forces. And I would be the first act to release a video on Twitter. I'm very happy to be part of this movement, the social media movement is incredible,' he said.

'I believe that if you surround yourself with the right group of people between producers and composers something magical can happen.'