tied naked to the bed, the evil wicked wanda gazed down on the captive, agent long with an evil smirk, as she fondled and squeezed his gargantuan hard-on
an erect penis
"tied naked to the bed, the evil wicked wanda gazed down on the captive, agent long with an evil smirk, as she fondled and squeezed his gargantuan hard-on" What is the definition of "hard-on"?