Tori Spelling is ''super fertile'' according to husband Dean McDermott.

The actress is having her fourth child - conceived only one month after giving birth to her third, Hattie - and Dean says its partly her fault that they ignored doctor's orders and got pregnant so quickly.

He told Celebuzz: ''It's so funny how everyone blames the man.

''It's like, 'Oh my God, will you leave your wife alone?' But it takes two to tango. She wasn't putting up that much of a fight. But I have big shoulders. I'll take it.''

The couple have Stella, three, and Liam, four as well as six-month-old Hattie, but Tori says her latest baby - due in September - has been the easiest on her out of them all.

She said: ''My pregnancy is going great. Knock on wood, this has been my best pregnancy. I've been feeling great. With the first three pregnancies, I was super sick all the time and nauseous.''

Tori, 38, also told how Dean finds her sexy when she is pregnant.

She added: ''I'm never as happy as when I'm pregnant.

''And Dean can't keep his hands off me! He's like, 'You're the sexiest pregnant woman.'

''I literally would have 10 babies if I could!''