First love, the first serious partner, and the first sexual experiences are something special and present young people with entirely new challenges as part of their development. Their bodies are changing in unfamiliar ways, and the first breakup and the first heartache evoke feelings that have not been experienced before. The book initially provides current statistics and findings on the sexual behavior of adolescents. Regarding love and partnerships, developmental psychological models are presented alongside findings on the initiation of first partnerships, illustrating the interactions that love and partnerships have with other central areas of life, such as family, friendships, or school. The volume also addresses potential risks associated with sexuality, love, and partnerships, such as premature sexual development or inconsistent contraception.