My first wife had one of the biggest clits I've ever seen--when hard, it was a full inch long and about a third of an inch wide, and the head (which was clearly defined) stuck fully out of the hood. The weird thing is that when we were first dating I really never noticed it (too busy just fucking, I guess), and then one of the first times I went down on her when the lights were on I had to stop and stare--couldn't believe what I was seeing. She had big inner lips as well that thickened up when she got aroused, and her clit stuck straight out at the top, which pulled her lips open below--I've never seen a more aroused looking pussy, even now, and I thought it was the hottest thing I'd ever seen (still do).
Watching her jerk off became one of my favorite things--she could put her thumb and index finger on either side of the shaft and pull it up and down just like a cock. The best was when we had one of those massage units that fit on the back of your hand with elastic, and every now and then she would jerk off wearing it--she'd have her index and ring fingers on either side of her clit, and when it got good and hard sticking up between them she'd put her middle finger right on the head and go batshit. When she came, her clit head got really purple and visibly throbbed with every contraction. Boy, still makes me hard just thinking about it and that was a long time ago.
Too bad that was before digital cameras--a picture of her fully hard would be worth a lot. Too bad also that she was a total slut (which is why we're not married anymore), so I guess a lot of guys got to see her equipment anyway.