Her belly may be growing fast
, but Kristin Cavallari
is keeping the rest of her body trim!
The reality star, who is expecting her first child
with fiancé Jay Cutler, got some cardio into her Wednesday workout in West Hollywood with a little help from her trusty canine companion, Bardot.
Bardot (so beloved that Cavallari named her first shoe design
after the dog) took the lead on the walk. Cavallari, who sported a little pre-St. Patrick's Day spirit with the green in her workout gear, stayed behind and frequently checked her phone.