Maralee Nichols, 31, is out and about with her baby boy since Tristan Thompson, 30, fessed up to being the little one’s father. The fitness model wore a white sweater with a black and white striped collar and black leggings as she pushed her newborn in a stroller in pics captured on Sunday, Jan. 16. She was spotted glancing at her phone as ran errands with her one-month-old in Santa Monica.