Jen Selter, the active fitness and Twitter user, posted a revealing photo of herself in a bikini.

The photo that was posted on Monday shows Selter wearing an orange strapless bikini top and a black bikini bottom. She's standing in a side shot with one knee in front of the other as her face is slightly hidden in a shadow.

Selter posted another photo of herself on Monday where she's wearing a black bikini by a pool. Selter captioned this photo, "can it be summer already."

Even though Selter might be looking forward to summer, she posted a winter photo of herself on Monday wearing more clothes. It appears that she's standing on wood as she wears a black sweater and pants with tall boots. There are trees and a ground of snow around her as she stands sideways, showing off her infamous behind.

The Twitter user captioned this photo, "Rar."

While Selter is most commonly known for her Instagram photos, she is also known for writing multiple tweets throughout the day.

Since Monday, she posted several tweets, some including:

"Look at what you have, now what you don't have."

"When someone smells good, they're automatically more attractive."

"Nobody appreciates a good girl, until she doesn't care anymore."

Selter is active on Twitter, Facebook and Instagram where she often posts revealing photos of herself.