title: Penis preference is not as simple as it seems: evolutionary biology is only part of the answer.
authors.affiliation: Center for Human Sexuality Studies, Widener University, Chester, PA, USA.
authors.forename: Erin
authors.initials: E
authors.lastname: Crabill
mesh_terms: D002755:Choice Behavior; D005260:Female; D006801:Humans; D008297:Male; D009948:Orgasm / Q000502:physiology*; D010413:Penis / Q000033:anatomy & histology*; D014621:Vagina / Q000502:physiology*