(Cover) - EN Star Style - Whitney Port says working out with her best pal is fun.

The reality-star-turned-fashion-designer shot to fame when she appeared on The Hills and spin-off series The City. She now has her own fashion collection Whitney Eve and fronts campaigns for several beauty products.

The pretty star says she is aware of maintaining her already svelte figure, but sometimes needs motivation from her best friend, Joanna.

She takes a spinning class at the same time while Im outside, she told okmagazine.com. Just to have her there is fun.

Typically, Whitney has no trouble gearing up for hour-long workouts. The fashion designer heads to the gym three or four times per week, and says she actually prefers to work out alone; she just likes the comfort of knowing Joanna is nearby.

I do cardio for 35-45 minutes, whether thats on the elliptical or walking or running on the treadmill, I switch back and forth because I can get bored at times. Then, Ill go do some weights Ill do some bicep curls, pushups, sit-ups. As long as Im in the gym three times a week, Im happy, she revealed. I feel like working out is something where I can be alone with my own thoughts and release all that tension. (C) Cover Media