SOCIALITE Paris Hilton has sparked wedding rumours with her lover Benji Madden, after being introduced as his wife, and the pair exchanged diamond rings with one another's initials.

Paris Hilton is being introduced as lover Benji Madden's wife.

The hotel heiress - who started romancing the Good Charlotte rocker earlier this year - sparked wedding rumours after Benji's brother Joel called her his "sister-in-law" and Benji was spotted wearing a diamond ring bearing the initials PH.