Nicole Richie reportedly spends $20,000 on underwear every year.
The 'Candidly Nicole' star - who has children Harlow, six, and Sparrow, four, with husband Joel Madden - works hard to keep a "spark" in her marriage, even when the Good Charlotte rocker is working on 'The Voice' in Australia.
A source told America's OK! magazine: "Intimacy is a priority for them. Nicole likes to buy lingerie to spice things up. She spends a good $20,000 a year [on lingerie].
"Even with Joel shooting 'The Voice' in Australia for months at a time, they Skype and text daily to keep the spark alive."
Nicole recently admitted she and Joel - who both had parents that divorced when they were young - work hard to be a "team" to provide their kids with a "healthy family life".
She said: "We met and we were partners from day one.
"And from the second we found out we were going to parents together, we looked at each other and we said: ''OK, both of our parents are divorced. We both have had ups and downs with our parents and we don't really have a strong example of what a healthy family life is. But, we're recognising that now, so let's work at it and let's go through this together as a team.'
"It's been great. And I would say that's the easiest and hardest part."