Here we go! We are trying a new serum, and this should be extra special. It's going to help you have an orgasm, since it sounds like you have trouble with those. We will be using special lube for your cock. This is a trial experiment, as you know. I'm just going to go ahead and get you nice and... excited. The thing with a cock? It needs to be treated like gold.

We're going to get you nice and hard. We'll get you to the point that you have trouble finishing it off. And that's when I'll inject you with the special serum. And I just bet we will get a big load of cum! Like magic!