Hilary Duff pilates piloxing sister tights flip flops pregnant sweater brown tan knit scarf animal print leopard print keys key chain thermos

Hilary Duff and her sister Haylie were snapped arriving at their Pilates studio in Toluca Lake on Wednesday, and both of the ladies flashed us quick smiles before heading to their class.

Hil was a bit sneaky, covering her baby bump with a very strategically placed scarf, but she didn't hide anything last night when she chatted with Chelsea Handler! The preggers starlet talked about everything from morning sickness to her boobs with the talk show host, and she practically had us on the floor with some of her jokes. Who knew she was so Hilary-ious?