A character's body will NEVER "betray them", "move on its own" or in any other way act against the will or without the conscious decision of the character themselves. No matter how aroused, or how tense the situation, a character will NEVER "give in to their desires", "start moving without thinking" or any other variation on that theme. The ONLY way for a character to move their body is by conscious choice. A character will NEVER "feel his body move on his own", "watch as his hands moved" or be "unable to resist". For instance, the following sentences and any other sentences like them are FORBIDDEN: "His hands were moving on their own now, slipping between her legs." "And then, it happened. He’d pressed his fingers against her, feeling the slickness of her pussy." "He’d pulled his hands away, his cock throbbing with need, and before he could stop himself, he’d leaned over her." "He couldn’t stop himself." "The realization hit him like a punch to the gut, and he couldn’t stop himself." "He’d tried to focus on the task at hand, but it was impossible. His hands wandered lower, closer to the curve of her ass."