Delta Jim wrote:Spoiler: show
I'm both intensely curious as to how this could have possibly happened and pretty sure I don't want to know.
(Pleural fluid is the fluid between the serous membranes around the outside of your lungs. Key word: "outside", so the patient somehow getting semen in their lungs only explains how it got to the general area. Though, I guess that might have something to do with why they're in the hospital in the first place)
Patient probably had a perforation of the lungs while performing oral sex. s/he probably also choked a bit, with the semen going down the wrong airway. Bam! Semen outside the lungs.