Lust - How Can it be Overcome?

I am an above beginner level meditator - I have been practicing Vipassana meditation regularly for past 6-7 months - By regularly, I mean 1hr of sitting meditation at least 5 times a week. I have not been able to control my lust. I try to remain mindful during acts of sexual gratification...but they are like very few moments of awareness...rest of the time I am just going with the flow...Although I am a lay person, I want to be celibate...Please guide me. I remember a story wherein Buddha said to someone how one should eat as if they are eating their own child having lost in a desert...are there any such stories from Buddha's life/teachings regarding this subject...Basically I need some inspiration...Please share your experience if possible