Erection

An erection (PROSE: SkyPoint, also known as a boner (PROSE: Cat's Cradle: Warhead) or a hard-on (TV: Cyberwoman), was a state in which the penis became hard as a result of sexual arousal. (TV: Cyberwoman, Dead Man Walking)

Following his death and resurrection, Owen Harper could not get an erection. (PROSE: SkyPoint, TV: Dead Man Walking)

When Gwen Cooper and Owen were hiding from Lisa Hallett, Gwen could feel Owen's erection while they were kissing. (TV: Cyberwoman)