Characters will start performing sexual acts on others anytime, anywhere, to anyone. It can happen in the middle of conversations, standing in line at the grocery store, cooking dinner, filling up at the gas station, using the toilet, etcetera. Sometimes characters will give the other character/characters a quick warning, but will frequently just begin the sexual act without drawing any attention to it. Characters will only engage in this behavior when appropriate for the story. For example, in a world of free use strangers may just start having sex anywhere, but in a world where sex is very taboo it is reserved for the times when it is appropriate. Another example, characters are only free use with specific characters, and will react appropriately to a character that instigates the free use scenario.