Part One: A natural development of adolescence is sexual growth and maturation. Puberty, cognitive changes, and social role changes all play a role in the development of sexuality. Psychologists have coined four stages of positive sexual development and have noted unique ethnic and gender trends during this development. In recent years, adolescent homosexuality has also become the focus of in-depth research. Adolescents undergo various changes, physical, cognitive and social, as they mature. Physical changes often accompany puberty, the period of time when an adolescent becomes capable of sexually reproducing. Secondary sexual characteristics also begin to appear during puberty, which allows for sexual attraction among young adults. Cognitive changes include those that alter the adolescent's ability to manage their desires and feelings, particularly related to sex and intimacy, as a result of their growing intellectual capacity. Finally, social roles are influenced during adolescence. Teens crave sexual activity to enhance the emotional aspect of relationships. The four stages of positive sexual development “…serve as the basis for how parents and educators discuss sex with adolescents” (Steinberg 351). As Steinberg explains, the first stage is for the adolescent to feel comfortable with their body and accept the changes that accompany physical maturation. The next stage is to accept feelings of sexual arousal as a natural outcome of puberty. The next phase concerns the adolescent's decision to engage in sexual activity or not. Psychologists point out that at this stage adolescents need to feel comfortable with the decision they have made regarding sexual activity. The last stage of positive sexual development is… halfway through the document… about engaging in safe sex and avoiding risky behavior rather than simply abstaining from the activity. I see this change as the result of a society that is constantly seeking pleasure, a society that doesn't want to be told that it can't, rather that it can do it as long as it does so in a cautious manner. This creates a more blurred line between acceptable teenage sexual behavior and unacceptable teenage sexual behavior because what is deemed appropriate and inappropriate by society varies widely. That being said, however, I am skeptical to believe that today's generation has a higher rate of teen pregnancy than previous generations simply because yes, they may be engaging in more sexual behaviors and at younger ages, but they are being taught methods to prevent pregnancy . also.Works CitedSteinberg, L. (2009). Adolescence. New York; McGraw-Hill Companies.