Pfft Try the No Fapping in conjunction with a 3-Hour No Nut Challenge. Actually, no rapping is implicit in the challenge.
What is a 3-Hour No Nut Challenge? I'm glad you asked. Try to go 3 hours buried in vagina without climaxing. It can be 3 hours all at once, two ninety minute sessions, four 45 minute sessions, 18 ten minute efforts. You get the idea. No masturbating in between and no BJs or hand jobs in between for relief.
I did this, chronicled in SAMA, a few years ago. I think it took me a week and a half or two. If I remember right I ended up going over 4 hours. Like Evil Kinevil jumping the Snake River, no one else has ever tried.