Megan Fox
The actress says she doesn't want to embarrass her son when he grows up by being to sexy in films. Reuters

Megan Fox has changed her perspective on provocative movie roles since becoming a mother.

The "This is 40" star and her husband, Brian Austin Green, had a son, Noah, in September.

Known for slim body and smoldering looks, Fox now says having a baby makes her think twice about being "overly sexual" in her movies, according to Gossip Cop.

The actress recently attended a Hollywood Foreign Press Association event and told the media that her son is now her main priority.

“I’m going to be more cautious about choosing films because I’m already thinking about when he’s in school and his friends are going to be showing him my photo shoots with me in a bikini and he’s going to be horrified,” she said.

“So that will deter me from making some of the choices I made before.”

Having been named the sexiest woman in the world by FHM magazine in 2008, the Huffington Post reported. Fox previously posed in lingerie for a Sharper Imager campaign while four months pregnant, Us Weekly said.

She says she is in no rush to get back into shape.

“I only gained 23 pounds when I was pregnant and I’m still 10 pounds heavier than I was but I don’t want to kill myself trying to get back into shape because it’s not a priority right now,” she told reporters.

“I’m too in love with Noah and I don’t want to be away from him. I don’t want to be at the gym, I just want to be home.”

Despite being devoted to her little one, the actress does admit being a new parent is a lot harder than she expected.

"Having an infant is difficult. It's a lot of work, and I didn't hire any help because I overestimated my own abilities. I had no idea how difficult babies could be, so Brian and I were exhausted," she told E online.

"We have to get a night nurse or we’re going to get a porce because somebody’s got to sleep in this house or we’re going to kill each other."

Never the less, Fox still seem to think the sleepless nights are worth it.

"You never sleep and you're awake all night and your entire life is devoted to this little thing that needs you constantly. And I love it."

"I don't receive the same satisfaction from my career as I do from being a mother, so I'm really happy."