After weeks of rumour and speculation over the nature of their relationship, Paris Hilton’s regular party pal Adrian Grenier has spoken out to insist that the pair are not dating.

Although, that’s not to say he isn’t open to the possibility!

E! Online caught up with the Entourage actor at last night's starry HBO bash in Hollywood:

"I think she’s absolutely wonderful,” said Adrian when asked about Paris.  “I really like her, genuinely. So, there’s that. Just genuine human-to-human appreciation. But she also has a very unique experience that I’m curious about.

“It’s an experience she’s been intertwined with for many years. Well beyond the many years I’ve had to experience this sort of celebrity situation. So, you know, we’re sort of helping each other out. We’re sort of mutual mentors."

When asked for the definite word on whether they are dating, Adrian said, "We're not. We're just friends.

"But," he added slyly, "there's always a world of possibility!"