An adult toy, such as a phallus-shaped vibrator, has a hollow core, a tip coupled to an end of the core and a handle containing a control interface allowing user control of the vibrator. The handle, which is coupled to the core at a distal end to the tip, houses a peristaltic pump that engages a flexible pipe network. The hollow core incorporates an access door that, when opened, allows loading of a reservoir cartridge into an internal compartment of the core. Under selective microprocessor control, the peristaltic pump spins its rotor assembly to engage and squeeze part of the pipe network. This squeezing effect encourages lubricant, liquid hormonal stimulant or other chemical solutions to exit the cartridge and controllably flow through the pipe network. With ejection of lubricant from the cartridge, the internal volume of the cartridge decreases.