Dear service user, Thank you for contacting healthcare magic. I have gone through your question and understand your concerns regarding disappearing or diminished erection during foreplay activity. An occasional episode of erectile failure due to functional or situational reasons like fatigue, tension or own pressure to perform rather to enjoy is very common. This diminishes arousal level and hence erection too. This seems in your case. This failure of erection makes one feel I should perform best and he tries to erect . This in turn further leads to lack of erection. Just enjoy kindling and loving with touch in the way both of you feel comfortable, rather than focusing about your performance and pressure to satisfy her. What you need to do is to consult a psychiatrist well versed with psycho sexual therapies. He will definitely assist you to come out of this problem. There are medicines which can significantly improve erectile dysfunction, but they should be taken only under medical supervision I hope this will help you. If you have additional questions or follow up questions then please feel free to write to us. I will be happy to answer your questions. Wish you good sexual health ahead.