Kim Kardashian dating Mark Sanchez?

Kim Kardashian has reportedly been "hanging out" with New York Jets' quarterback Mark Sanchez.

Kim Kardashian is reportedly dating Mark Sanchez.

The 31-year-old socialite - who was famously married to basketball star Kris Humphries for just 72 days last year - has allegedly been hooking up with the New York Jets quarterback, but has been careful to avoid being seen with him in public.

A source told Starberryicecream.com: "Kim and Mark like to meet in hotels for dinner dates and flings.

"Whenever Kim is in New York, they hang out. They are very careful with not being seen together, Mark is seeing someone! She has her hopes set on a bigger star than Sanchez. But for now, he will do."

Meanwhile, Kim's D-A-S-H clothing store in Miami has become so popular she is having to scout for a new store to move it to.

According to TMZ.com, Kim - who runs the fashion outlets with her sisters Kourtney and Khloe - is looking to double the size of the store in Florida.

Since her break-up with Kris in October, Kim has been spending lots of time with her family to think about what happened with her marriage.

She said: "I really did some soul-searching, and I needed that. I needed to just be with the family. It's been a hard couple of months. I really didn't think that following my heart would create this much backlash."