Molly Sims has compared her son to a vampire.

The 39-year-old actress gave birth to her first child, Brooks Alan, seven months ago and admitted she struggled with breastfeeding because it hurt so much.

Speaking on 'Anderson Live', she said: ''Early on in the hospital, they really want you to breastfeed, so I'm trying everything.

''And I'm like, 'Gosh, this really, really hurts.' And they're like, 'Oh, we know.'

''I'm like, 'Is there any way a baby could be born with a tooth?' And they went, 'Oh sweetie, I know you're a model, but ... babies aren't born with teeth!'

''I did nipple shields, nipple guards, supplemental nursing system, it was horrible.

''He was literally like a vampire on me for three months -- it was unbelievable. Cut to I'm not breastfeeding and I'm proud of it.''

Molly also revealed Brooks has inherited his father Scott Stuber's hairline but joked she hopes he grows out of it.

She said: ''He has the hairline of my husband. It's like an Eddie Munster kind of hairline. It's not so attractive, but [he'll] end up growing into it.''