'You gotta have sex': Pregnant Kristin Cavallari says one secret to a successful marriage is getting intimate because 'men need it'

She got married to NFL quarterback Jay Cutler two years ago and are expecting baby number three.

And now Kristin Cavallari is dishing out her secrets to a successful marriage.

The 28-year-old former reality star recently gave a few tips about marriage on her blog with one of the more interesting suggestions being the need for sex.

Picture perfect: Kristin Cavallari opened up in her blog about secrets to a successful marriage 

Picture perfect: Kristin Cavallari opened up in her blog about secrets to a successful marriage 

She wrote: 'You gotta have sex – men need it, and it’s important for the relationship. 

'It doesn’t have to be all the time, but you have to get it in there sometimes!'

Kristin also said that intimacy other than in the bedroom was of importance.

She continued: 'It’s so important to make time for each other, even if it’s just waiting to eat dinner after the kids go to bed. And even if it’s takeout, light candles and make an effort to connect.'

'Men need it': The 28-year-old former reality star said sex is a big part of a successful marriage 

'Men need it': The 28-year-old former reality star said sex is a big part of a successful marriage 

It seems as if Kristin has a bit more time to spend with her 32-year-old Bears player husband as he injured his hamstring during Sunday's gave versus the Arizona Cardinals and will not be starting this week's game.

As she is pregnant for the third time she also gave a few tips on how to bounce back into shape after giving birth.

She said: 'What you eat goes to your baby, and it plays a role in how you feel, so I try to maintain the 80-20 balance (eating healthy 80percent of the time) while pregnant. 

'You have to enjoy it and give into cravings, but I continue to workout through pregnancy (at a much lower impact). I give myself a free pass the 2 weeks after having the baby, then get back on the 80-20 plan.'

Aww: Last month she shared this picture of her NFL player husband holding hands with one of their sons as they headed to the field

Aww: Last month she shared this picture of her NFL player husband holding hands with one of their sons as they headed to the field

Mommy and me: She also posted one a photo of her view from the sideline with one of her boys during Jay's training camp

Mommy and me: She also posted one a photo of her view from the sideline with one of her boys during Jay's training camp

Kristin hasn't let her burgeoning baby belly get in the way of making appearances as she hit up The Blonds show during New York Fashion Week last Wednesday,

She looked amazing while clad in a figure-hugging, sparkly brown top with long trailing sleeves and crew neckline and a matching maxi-length skirt.

It was the perfect colour to highlight Kristin's shining blonde locks, which she tied in a ponytail at the nape of her neck.

Her big brown eyes were made up in complimentary hues of beige and brown, while a light layer of rouge touched her cheeks. 

Oh, mama: Last week Pregnant Kristin beamed with satisfaction as she paraded her growing bump at The Blonds show during New York Fashion Week

Oh, mama: Last week Pregnant Kristin beamed with satisfaction as she paraded her growing bump at The Blonds show during New York Fashion Week

That's my baby: The former star of The Hills cradled her bump while at the show

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