Has Paris finally found her Mr Right? And is the socialite made famous for her partying, really ready to settle down?

According to eonline.com, Paris, who was accepting an award for her charity work in LA referred to Doug's sister, Casey as her sister-in-law in her speech.

“I'd like to thank my future sister-in-law Casey (Reinhardt)”

Ooo err, Paris Hilton as a sister-in-law? What would that be like?

But it seems that Paris has already got the seal of approval from Doug's family as his mum and sister were sitting at the Hilton's table.

And to top it all off, a source revealed that it was Casey' final bid of $6,000 that won Paris' charity auction prize of a party picnic at her house.

The sound of wedding bells maybe closer than we think...