Plots:
Vampires:
You're different, yet you live a normal life disguised as a human. You either feed of animals, as a 'veggie' as the other vampires call it, or you crush the human Society around you, feeding off humans like the traditional vampires did. You're immortal, staying at one visible age for your life. You can't help that everybody is attracted to you, it's because you're different. Do you fall for your own kind, or fall for the humans? It is against your laws to tell a human your secret, although many ignore this law. It is also against the laws to turn newborns, and to have vampire offspring. Many also ignore this rule.
Humans:
You live a normal life, as a normal human, attending high-school, going through stages and phases that all normal teenagers do. You don't really suspect any differences in the students, however you may have arousing suspicions, why they're all so irresistible, why they all have pale skin and crimson-gold eyes? Sometimes, they reveal this to you after you fall in love with them.
Werewolves
Like vampires, you are also different. All muscles, sometimes with matching tattoo's, you can also not tell anybody of your secret. Apart from vampires, as they already know, they can smell you out. The anybody you can't tell are humans, although you can fall for them to. But what happens if you become their mate, what happens if you fall for them, what happens if they know?