A dilator (20) configured for dilating tissue of a corpora cavernosum of a penis having a dilation body (22) defined along a longitudinal axis of the dilator and an extendable wing (24) connected to the dilation body. A knob (26) is provided at a first proximal end portion of the dilation body and is configured to communicate with the extendable wing. Rotating the knob extends the extendable wing away from the dilation body and changes an effective diameter of the dilator. Also disclosed is a method of dilating the corpora cavernosum of a penis and a method of implanting a penile prosthetic in the corpora cavernosum of a penis.
