A container cover assembly with a stopper member having an outer sidewall of an elastically deformable material and a flange member extending radially outward from the outer sidewall, an inner cap member with the upper surface having the flange member of the stopper member seated thereon, the inner cap member operably configured to selectively and removably couple with a complementary threaded configuration on a conventional liquid container, wherein the stopper member is configured to seal with the upper end of the container. A collar member is coupled to the inner cap member and designed to retain a flexible straw member, wherein a protective cap member is configured to rotate with respect to the collar member to cover and retain the flexible straw member.