A device for transferring fluids includes a piercing member having a distal end and a proximal end and defines a longitudinal fluid channel. An opening is positioned at the distal end of the piercing member with the opening in fluid communication with the longitudinal fluid channel. Further, a sleeve having a proximal end and a distal end includes an extended position where the sleeve surrounds the piercing member and a retracted position where the sleeve is retracted from the distal end of the piercing member. The sleeve defines an opening at the distal end of the sleeve with a gap defined between the retractable sleeve and the piercing member.