Jenny McCarthy is dating a pirate.

The blonde beauty is romancing ex-fitness model Jason Toohey, who appears in 'Sirens of TI', a nightly pirate show held at Las Vegas' Treasure Island hotel.

Jenny - who split from actor Jim Carrey after five years together in April - is believed to have been secretly dating Jason for two months, after she hinted at having a "mystery man" on twitter.

The couple's relationship has developed fast, with Jenny even temporarily living with Jason in Las Vegas, according to reports.

Jenny said: "I've been living in Vegas for about a month. My house is under construction right now in Los Angeles, so I very well could be here until it's done. It's been awesome here."

In June, Jason changed his status on social networking site Facebook to 'In a Relationship', and has now changed his profile picture to one showing him and Jenny together.

The fledgling couple have also flirted on twitter, with Jenny replying to a message from Jason by saying: "Mr. Facebook decides to finally tweet. Welcome to the tweeters Mr. Toohey.

"Hope you and your abs can keep up with the pace."