Article continues below advertisementKristin Cavallari's sultry streak continues in Cabo.The Laguna Beach alum, 38, bared her cleavage in a skintight yellow dress on Wednesday, August 13.Cavallari sported a long, bodycon frock with a large cutout in the center, exposing her assets. She snapped a mirror selfie in the revealing look, which she paired with gold bangles and blue drop earrings from her own jewelry brand, Uncommon James.Article continues below advertisementSource: @kristincavallari/InstagramKristin Cavallari sizzled in a long yellow dress.