LeAnn Rimes is still allegedly romancing her co-star Eddie Cibrian.
The 26-year-old star - who is married to dancer Dean Sheremet - continued to fuel affair rumours by enjoying a motorcycle ride with Eddie earlier this month.
The pair were photographed flirting and laughing at a friend's Malibu home on July 17 as they prepared for the ride.
A source said: "They were very affectionate and very excited."
It has been claimed Jeff Berger, a long-time friend of LeAnn and Dean, has been allowing the singer-and-actress to meet married man Eddie at his home for around a month.
LeAnn and Eddie are also believed to have been spending time together at a rented home in west side area of Los Angeles.
LeAnn's representative has no comment to make about the latest affair rumours, while Eddie's spokesman called for privacy.
The actor's representative said: "Eddie is a devoted and loving father first and foremost and the speed bump he and his wife are experiencing needs to be worked out privately."
Meanwhile, it has emerged Eddie's wife Brandi Glanville - who has two children with the actor, six-year-old Mason and Jake, two - has left him.
Brandi, 36, told Us Weekly magazine: "Eddie and I have decided to take some time apart. I want to do what is best for our children. Eddie and LeAnn deserve each other."
LeAnn and Eddie, who met in TV movie 'Northern Lights', were allegedly caught on security camera footage kissing and holding hands in March.
Eddie vehemently denied the affair rumours, saying: "Other than being friends and two actors who were romantically intertwined in a movie-for-TV we filmed last fall, there is no truth to the reporting. It is a fabricated story that is using random snapshots as connective tissue to create a scandalous relationship."
LeAnn admitted she was struggling to cope following accusations of infidelity.
She said: "This is a difficult time for me and my loved ones, but I appreciate all your continued support. I would like to assure all of you that this is a place for you to hear things directly from me and as you all know, not everything in our lives is always black and white."