Paris Hilton believes Nicky Hilton and James Rothschild will be ''together forever.''

The 34-year-old DJ says her younger sister and her new husband, who tied the knot in a lavish ceremony at Kensington Palace in London on Friday (10.07.15), ''make the perfect couple.''

Asked about their relationship, the blonde beauty said: ''I know that they're going to be together forever and make the perfect couple. I am so happy for my sister because he's an amazing man and he loves her so much. He's loyal and loving.''

Paris, who acted as a bridesmaid for her sibling, has also formed a close bond with her new brother-in-law's family.

Speaking shortly before the nuptials, she told New You magazine: ''I have already met his mother and his sister and they're so sweet.

''[His sister] Kate actually just emailed me last night and sent me this YouTube video of this 3D hologram that a DJ is using in Asia and she's like, 'You need to do this for your live shows.' She's also going to connect me to someone to help make a hologram for my shows. She always has great ideas. She is an awesome sister-in-law.''

Paris, who recently started dating entrepreneur Thomas Gross, also opened up about what she is looking for in a husband.

She said: ''My perfect husband would be someone who is my best friend and who I can trust with anything. Someone I know would never lie to me, or hurt me or cheat on me. And someone who would always be there for me no matter what, who makes me laugh, is sweet, smart, and romantic and has a good heart.''