You know what it's like. Your girlfriend is more than 5,000 miles away, and no matter how much you trust her, you just can't help wondering what she's up to.
Well, that's how it is for David Schwimmer. He's in Hollywood, earning pounds 66,000 for every episode of Channel 4's hit American import Friends, while stunning girlfriend Natalie Imbruglia is in London, recording her debut album and pining for her California lover.
At least, so he thought. Until now.
As our pictures show, while Natalie is undoubtedly making sweet music with record producer Nigel Godrich, their efforts are not confined to the studio.
Natalie, 22 - she was Beth Brennan in Neighbours - left the Aussie soap two years ago to pursue her singing career.
Nigel, producer for top bands such as Radiohead, is masterminding Natalie's forthcoming album in a London recording studio.
Discussion of the musical details clearly carried over to the actress's mansion flat in North West London, where the couple have been spending nights together.
One observer says: "The minute Nigel clapped eyes on Natalie he was smitten.
"At first she didn't want to know and he tried everything he knew to win her over.
"He bombarded her with phone calls and kept begging her for dates but she kept him at bay.
"As the weeks went by his persistence finally paid off. Now they can't keep their hands off one another."
That much was clear as the couple strolled hand in hand near Natalie's home. Nigel, dressed in shapeless baggy trousers, an open-necked shirt and battered suede jacket, lovingly stroked her neck as they chatted in the street.
Then he couldn't resist pulling her close for a long, passionate kiss.
Natalie's album is due out next year on the RCA label. Music insiders monitoring its progress say she's good, and it'll be a success.