Jenny McCarthy's "womb is closed".

The 35-year-old actress, who has a five-year-old son Evan Asher with ex-husband John Asher, insists she has no plans to extend her brood with her comic actor lover Jim Carrey.

She said: "This womb is closed! We're living together, we don't want any more children and we're very happy."

McCarthy is also uninterested in tying the knot with Carey.

She added to In Touch magazine: "What is marriage a guarantee of? I'll be yours forever? I'll be faithful? Bull! It's really just a piece of paper."

Despite her reluctance to marry or have children with 46-year-old Carey, McCarthy admits she is blissfully in love with the Hollywood funnyman.

She said: "He is the light of my life and we're more in love now than we have been in our entire relationship."

Carey has been divorced twice and has a 20-year-old daughter, Jane, from his marriage to first wife, actress Melissa Womer. The pair divorced in 1995.