Would I if I could ?
Simply no.
Love masterbation , but not interested in giving my self BBJ at all.
A couple of my cousins, who have large ding dongs, used to do that when they were kids, and constantly bragged about that, and yes ...LOL , one of them even showed me and my brothers a demo.
We had a great laugh then.
One LF I dated last year, mentioned to me once that she would indeed suck her own box if she could. She was quite flexible then but not enough for that though ( tongue also wasn't long enough ). On another thought, I don't think I would enjoy watching any sexy gal chowing on her own box.... visually, it is not that appealing IMHO.
Interesting poll none the less.