Abstract: A modular system which may aid in collection of bodily fluids, and more particularly collection of sperm. The system may include a plurality of components including a sleeve, a core and at least one cap. The system may be easily assembled and disassembled for interchangeability of each of its components as well as for cleaning and disinfection. The system may include a substantially rigid outer shell with a more malleable inner core. The core may be a single piece or multiple pieces and may be interchangeable depending on a user's preference and may reside within the outer shell but may be easily removable from the outer shell. A first end cap may include a face of substantially the same material as the inner core and may be interchangeable based on user preference as well.