Although the characters portrayed by Jennifer Aniston and Matt LeBlanc in 'Friends' did have a brief onscreen fling, but the actress says that they are simply good friends in real life. She denied that they ever had an affair.

Christian Today states that recently a report in Star magazine claimed that LeBlanc's 73-year-old father, Paul, alleged that his son had a relationship with Aniston while the two starred on 'Friends.' Paul further said that the romance happened while Aniston was still married to her former husband Brad Pitt.

The magazine quoted Paul as saying, "He even had a relationship with one of the girls ... Jen," adding, "They would make out in the dressing rooms. He even told me about it - it was when she was married to Brad Pitt."

Meanwhile, a representative for Aniston denied the Paul's story. The rep issued a statement, saying, "I have commented in the National Enquirer and others. It's 100 percent false ... Jennifer has never had a romantic or sexual relationship with Matt LeBlanc."

The report in the magazine, however, said that Paul, who is estranged from his son, did not specify at what point the 'Friends' stars allegedly became very close in their real lives.

It is worth mentioning here that LeBlanc's and Aniston's characters, Rachel and Joey, began a romance toward the end of 'Friends' Season 9 and the start of Season 10. In the show, Rachel began developing feelings for Joey, and when Joey realized that his girlfriend Charlie was better matched for Ross (David Schwimmer), he decided to continue a romantic relationship with Rachel.

After few episodes into 'Friends' Season 10, Rachel and Joey decided to remain friends, and by the time the series ended, Rachel actually ended up with the man she loves - Ross.

In her real life, Aniston was married to Pitt from 2000 to 2005, and currently she is engaged to Justin Theroux. In the meantime, LeBlanc was married to Melissa McKnight in 2003, but they split up in 2006.