Yeah, I've sucked my own dick. And tasted and swallowed lots of cum. Sometimes it don't taste too good but mostly it's great, especially the young dudes. Theirs is usually thick, creamy and plentiful. I also like to clamp my teeth over my cockhead and see how long I can hold the position.
No, I will never tried to suck my own dick and I don't want to do that because it would be a weird feeling for anybody to suck his own cock. I think I never felt to do this thing and I think it's not great idea for anybody to doing this.