You cannot explain, with the limitations of language and inexperience, why your body can cause such a sudden, fumbling response in someone else, nor can you put into exact words what you feel about your body, explain the thrum it feels in proximity to another warm-skinned form. What you feel is a tangle of contradictions: power, pleasure, fear, shame, exultation, some strange wish to make noise. You cannot say how those things knit themselves together somewhere in the lower abdomen and pulse.