An example stimulation device for a male penis includes a pressure field generation device for generating a pneumatic alternating pressure field, and an applicator for applying the alternating pressure field to a portion of a penis that is to be stimulated. The applicator has a pressure chamber, which can receive an alternating pressure field generated by the pressure field generation device. The pressure chamber has an opening in a contact region of the applicator, so that the alternating pressure field can be applied directly to a portion of the penis that is to be stimulated via the opening. A sealing device is arranged on the applicator, which is configured to seal the pressure chamber against the environment when the applicator is applied to the penis.