Kristen Bell's husband has only left their house twice since she gave birth to their first child in March.

Dax Shepard claims his life has completely changed since he and his 'Veronica Mars' star wife welcomed their daughter Lincoln into the world.

The 38-year-old 'Parenthood' actor hosted Court Appointed Special Advocates (CASA) of Los Angeles' Evening of Dreams Gala at the Four Seasons Beverly Wilshire Hotel on Wednesday (01.05.13) and admitted he was thrilled to have a reason to be out and about.

According to, he joked to guests at the event: ''Thank you guys so much for having me. I'm so glad Zach Braff passed on this!

''I have a five-week-old daughter at home, and this is the second time I've left the house in five weeks so thank you so much for having this event tonight. I'm available tomorrow night if you want to go round two.

''The other time I left the house was to go to Costco. Have you guys seen Costco? This place has ample parking, a super liberal return policy, and there's no babies.

''I went and left the house and it felt like a bachelor party in Vegas! I strolled those aisles. I went and lifted everything up off the shelves. I strolled the aisles for four or five hours!''

Kristen previously compared their first child to ''pre-sobriety'' Dax.

The 32-year-old blonde beauty wrote on Twitter: ''My new roommate poops her pants and doesn't pay rent...basically Dax Shepard pre-sobriety. Welcome baby Lincoln xo.''

Their sense of humour was present throughout Kristen's pregnancy, with the actress saying earlier in the year she wanted to be ''hit in the face with a baseball bat'' during birth.

She said: ''I feel like, when I arrive at the hospital, I want a glass of whiskey, I want the epidural in my back and I want to get hit in the face with a baseball bat.

''Wake me up when it's over because I've seen the videos -- and it looks terrifying.''