Rapid hardening: Sensual stimulation leads to instant arousal. Related tags:e0%e0%b8%82%e0%b8%82%e0%b8%a1%e0%b8%82%e0%b8%b7%e0%b8%99%e0%b8%a1%e0%b8%a1%e0%b8%82%e0%b8%99