Buxom Serial Kisser Pumping Lip Stain in S.W.A.K. A plumping lip stain that hydrates while delivering killer color with lasting shine. Size: 3.0ml/0.10 fl. Oz. This innovative, lightweight serum drenches lips in saturated, juicy color and lasting, to die for shine. Hydrating hyaluronic acid nourishes lips and leaves them looking plump, supple, and completely kissable. The precision doe-foot glides across lips for pout-perfect application every time.