...you notice the chocolate has a slight spicy flavor to it. The flavor starts to get a little stronger on your tongue. After you swallow it a slight burning sensation rushes through your body.
You get up and go to the kitchen for something to drink. As you walk you notice that everything in your vision starts to get a lil fuzzy. You finally pour yourself a glass of water. Drinking the water doesn't seem to be helping anything. Actually you think the fuzziness is getting worse and nausea is starting to set in. On top of all that, your skin is starting to heat up.
You rush to the bathroom thinking you're about to throw-up. When you get there the nausea subsides but is replaced by a new sensation. Horniness.
The heat running along your skin starts to focus on your balls. Damn, it feels really good. You reach a hand into your briefs to feel them and begin to notice them throb. Slightly panicky, you pull your pants down and practically rip your underwear off. Cupping your balls you realize they are throbbing, visably so. Your cock gets harder than it's ever been before. It feels so damn erotic, as if you're about to cum gallons right then and there.
Just as your panic starts to subside, you notice a new change. The color of your sack is starting to darken. First just a really tan color, but it's rapidly getting darker. The throbbing begins to spread to your already fully hard dick. God, you can actually see your dick growing beyond its normal length and girth. The sensations have almost completely overtaken you. You close your eyes, preparing to cum. But you can't seem to do it.
You finally open your eyes and look down at your crotch. You can't believe it, not only have your cock and balls grown well beyond their normal size. They share their color with that of a very dark black man. You notice your bush is also changing color as your new skin tone begins to move over the rest of your body...