Nick Jonas is reportedly dating two of his Les Miserables co-stars.

The 17-year-old member of the US singing trio The Jonas Brothers is currently starring as Marius in the West End production of the famous musical. Nick and his brothers have vowed to wear purity rings, representing their commitment to abstain from sex until they get married.

However, Nick`s strong Christian beliefs haven`t stopped him getting to know two of his young co-stars, former X Factor singer Lucie Jones and theatre actress Samantha Barks, who play Cosette and Eponine in the show. Nick has taken both girls out for dinner in London and they are said to be "smitten" with him.

The budding romances are causing some "tension" as several other young girls also have their eye on Nick.

"Nick is getting a reputation as a heart-breaker," a theatre source told British newspaper The Sun. "He`s been out on dates with both Samantha and Lucie and they both seem quite smitten.

"Nick`s just having fun - but he`s causing some tension between the girls. There`s been a lot of jokes backstage because art is imitating life. In the musical Eponine fancies Marius. But he ends up with Cosette."

Nick has previously dated Miley Cyrus.
sections: Celebrities