Topic Tag: muscles in their penis fills with blood. Search for: Home Page › Forums › Topic Tag: muscles in their penis fills with blood. Viewing topic 1 (of 1 total) Topic Voices Posts Last Post It should be neerectile dysfunction, muscles in their penis fills with blood. Started by: Anonymous in: Requests 1 1 1 year, 9 months ago Anonymous Viewing topic 1 (of 1 total)