Nicole Richie is thrilled to see her brother in law so happy! She stopped by Andy Cohen's "Watch What Happens Live" to promote her new show "Candidly Nicole," and was grilled on Madden's new romance and former gal pals Paris Hilton and Lindsay Lohan. Find out what she had to say!

A fan asked Richie if she played matchmaker in the newfound relationship, to which she replied, "Yes. I'm going to take responsibility for everything!"

She continued, "I approve of anything that's going to make Benji happy."

"I am a devoted sister-in-law. I'm happy for anyone who is happy, and I want everyone to be surrounded with love."

We've been seeing a lot of the hot new couple lately, and according to a source, Madden is madly in love!

"Benji is madly in love with Cameron, but she wants to take it slow -- he isn't her usual type. He has dated a lot of Nicole's friends in the past but Nicole really wants this one to work."

Richie also spoke candidly about former "Simple Life" co-star Paris Hilton.

"Paris is somebody that's been in my life since day one."

"I haven't spoken to her in a while technically, but, if you really want to get into it, my view of a friendship is someone that you don't necessarily have to talk to you every day," she explained.

"It's somebody that you can call when you need them, and they're just going to be there. So, time as whether I've spoken to somebody is really... it doesn't really matter in my opinion."

As far as former pal Lohan, Richie simply said, "Haven't spoken to her in a while."

Richie is married to Benji's brother, Joel Madden, and the couple has two children.

We think it's great how much she cares for her brother in law! Do you agree? Sound off in the comments section below!