Do teenagers get more horny then adults?

To some extent, yes. It is a combination of factors. One of the primary factors is hormones. Teens have more hormones that someone older ( the older you get the less hormones are present in the body) so yes they would feel the need to have more sex. It is also matter of control. Adults ( for the most part) have learned to control urges and teens have not. With age comes learning and a brain development so adults have matured to the point where they can control themselves. Finally, there is emotional development. Teens are often confused about their place in the world, how to feel about themselves, and worry/think/wonder about sexuality while adults ( it is hoped) have a firmer emotional foundation/growth. All of this adds up to answer of "yes" to your question.
To some extent, yes. It is a combination of factors. One of the primary factors is hormones. Teens have more hormones that someone older ( the older you get the less hormones are present in the body) so yes they would feel the need to have more sex. It is also matter of control. Adults ( for the most part) have learned to control urges and teens have not. With age comes learning and a brain development so adults have matured to the point where they can control themselves. Finally, there is emotional development. Teens are often confused about their place in the world, how to feel about themselves, and worry/think/wonder about sexuality while adults ( it is hoped) have a firmer emotional foundation/growth. All of this adds up to answer of "yes" to your question.