Feeling Why do I Get Hungry After Sex can be attributed to a few factors. Sexual activity triggers the release of various hormones, including oxytocin and dopamine, which can influence appetite. Sex can be a physically demanding activity, burning calories and potentially leading to feelings of hunger afterward. The body's metabolism can increase during and after sex, leading to a need for replenishment. Post-coital relaxation might make you more aware of bodily sensations, including hunger.