Hello Patient, Average normal intercourse timing is 8 to 12 minutes. There can be various reasons for this issues are excessive masturbation, life style and diet intake etc. Due to this veins of penis become weaker and there is no proper blood circulation in these veins it results in less stability power so, whenever you go through intercourse you ejaculate quickly but it can be curable please click on our profile and give us a call. We can schedule a free counselings session with our 40 years of an experienced counsellor.