Quantity.

I've noticed that penis-enlargement emails often also advertise products to increase your semen volume. I thought this was completely ridiculous until I met Benny.

Benny comes more than other guys. Probably twice as much as every other guy I've been with. He comes for a startlingly long time, squirt after squirt (more than once I've thought he was done and stopped, only to feel dumb when he frantically whispered "keep going" and there was more) until there's about a quarter-cup of jizz splattered around. Sometimes I go down on him and I end up swallowing and spitting.

Is it the best thing in the world, does it make other men seem inadequate, is it worth taking unapproved Nigerian medications for? Course not. But it is pretty fun to watch. Or feel or taste. I always think it must be a fantastic orgasm. It goes on for so long.

Really, though, I think I like it less for what it is, and more for being one of those private biological quirks that you can only know about someone by fucking them. It's like the birthmark on Alan's butt shaped like Australia; I get no particular pleasure from the thing, but I get tremendous pleasure that I know it. I can look at these men when they're out in public and properly dressed and I can think "Hey! Australia-butt!" and it makes me happy in some way I can't quite quantify. It's a small kind of ownership, maybe.

Everyone walks around with these small secrets. Sometimes I look at strangers and try to guess theirs.