no, it's fine. don't read too much into the way your body stores or burns things, as it's still all about total calories.
for example, you cannot store alcohol as fat, or store it as anything else for that matter. it will be burned preferentially until it's out of your system. doesn't mean that alcohol won't make you gain weight. you just put off burning the other calories you've taken in.
if MCT's can't be stored as fat (and i'm not convinced of that, btw), you'll just store the other calories you've taken in, until they're burned off. which will create the bulking situation, which is nothing more than a caloric excess.