Maralee Nichols is putting in the work, but not without making jaws drop.

The fitness instructor gave fans a glimpse into her morning workout.

She worked outdoors competing with the high temperature.

Nichols looked gorgeous in a white gym set.

Nichols welcomed a son with Tristan Thompson last year.

Their secret affair was the reason Tristan and Khloe broke up.

Since the affair came to life, Nichols has been focusing on their son Theo.

From time to time she updates fans on Theo’s milestones.

Recently, Tristan gave baby Theo a half sibling after welcoming baby 2 with Khloe.