I want to try a /lit project, but I've realized there's a key blank in my knowledge.

I have plenty of writing experience, and feel confident enough that I can write most death scenes in a way that's both fun and hot. But I know almost nothing about asphyxia, and since it's such a popular fantasy - and my own #1 fetish - I want to know more.

So saying I'm sitting in my chair writing this, and somebody walks up behind me and loops a cord around my neck...

What actually happens? How does my body react, what sensations do I feel and how long does it take me to die? Graphic detail is good, if I'm going to write I want to do a good job.

I'm also curious about orgasms. I've read that lack of oxygen can increase sexual sensitivity and vastly enhance orgasm... is that true? if you rubbed my clit or fingered me as I was dying, would my last orgasm be the best I'd ever had, or would I be in too much pain/distress to cum?