A body implantable penile prosthetic assembly includes a pump and a release mechanism. The pump is connectable to a pressure reservoir and a penile implant, where the pressure reservoir contains a pressurized liquid at a first pressure when implanted. The release mechanism is connectable between the pressure reservoir and the penile implant and is configured to release the pressurized liquid from the pressure reservoir to inflate the penile implant to a second pressure that is less than the first pressure. The pump is operable to transfer the pressurized liquid from the penile implant to the pressure reservoir to deflate the penile implant, and pressurize the pressurized liquid in the pressure reservoir from the second pressure to at least the first pressure.
