Source -Things are getting steamy between Kristin Cavallari and her boyfriend, Mark Estes.

I think its a lot of things.

And Im so wildly attracted to you.

And I just think we have really hot sex.

First of all…obviously, right?

You don’t date a guy like Mark Estes for the stimulating conversation.

No offense to Mark.

You date him because he looks like a Greek god and is probably hung like a horse.

I mean look at this man…

If that photo doesn’t scream “wrench” then I don’t know what does.

He’s even got hot guy tattoos.

“FOR SURE.”

What a perfect response.

I actually didnt know that, she replied.

Youve never said that to me.

I would have remembered that one.

Run while ya can, Mark.

Then again, maybe not.

I wonder what Jay thinks of this whole thing because you know he’s watching.

This is a guy who went on Sofia with an F after Kristin did Call her daddy… Congrats to these two on the fucking.

Mark says he wants kids but time will tell.

Hopefully they enjoy themselves in the meantime!

I’m rooting for them!