Sekitar 20% dari jumlah penduduk Indonesia adalah remaja. Salah satu realitas perilaku seksual remaja adalah seks bebas dan kehamilan yang tidak diinginkan. Kehamilan tidak diinginkan bisa berakibat aborsi tidak aman bahkan berakhir dengan kematian. Risiko Iain yang dihadapi remaja adalah penularan penyakit menular seksual termasuk HIV/AIDS. Tujuan penelitian adalah diketahuinya perilaku seksual pelajar SMA Negeri di kota Solok dan hubungannya dengan pola asuh orang tua. Desain penelitian ini adalah cross sectional. Lokasi penelitian di kota Solok dengan sampel pelajar SMA Negeri. Hasil penelitian ini menunjukkan sebanyak 25,5% pelajar berperilaku berisiko, bahkan 4% diantaranya sudah melakukan hubungan seksual. Pada analisis bivariat didapatkan bahwa pola asuh orang tua berhubungan dengan perilaku seksual dengan OR 3,258. Pada analisis muhivariat diperoleh hasil bahwa tidak ada hubungan pola asuh orang tua dengan perilaku seksual setelah dikontrol variabel sikap terhadap perilaku seksual, jumlah pacar dan paparan media pornografi. Diperoleh hubungan yang bermakna antara perilaku seksual dengan sikap terhadap perilaku seksual (OR 3,138), jumlah pacar (OR 5,234) dan paparan media pomograii (OR 44222) Terdapat hubungan yang berrnakna antara pola asuh orang rua dengan jumlah pacar dan paparan media pornografi. Faktor paling dominan yang berhubungan dengan perilaku seksual pelajar SMAN di kota Solok tahun 2008 adalah jumlah pacar setelah dikontrol variabel sikap terhadap perilaku seksual dan paparan media pornografi. Tidak ditemukan hubungan yang bermakna antara perilaku seksual dengan jenis kelamin, usia pubertas, komunikasi dengan teman sebaya dan lama pertemuan dengan pacar. Tidak ditemukan hubungan pengetahuan tentang kesehatan seksual dengan perilaku seksual setelah dikontrol variabel sikap terhadap perilaku seksual, jumlah pacar dan paparan media pornografi. Berdasarkan penelitian ini perlu adanya peningkatan pengetahuan pelajar tentang kesehatan seksual melalui pendidikan kesehatan reproduksi remaja di sekolah dan pelayanan kesehatan peduli remaja. Orang tua hendaknya mengawasi remajanya terutama dalam hal berpacaran dan paparan media pornografi. Pengetahuan orang tua tentang pengasuhan (parenting) dan kesehatan reproduksi perlu ditingkatkan.

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Around 20% from amounts of Indonesian residence are teenagers or adolescent. One of teenager's sexual behavior realities are free sex and unwanted pregnancy. Unwanted pregnancy could caused unsafe abortion moreover could ending with death. Another risk that faced by those teenagers is contagion of Sexual Transmitted Disease including HIV/AIDS.

The research aim is to know teenager's sexual behavior at Government's Senior High School students in Solok city and its relation with parenting style. This research design is crass sectional. The research located in Solok city with sample of Government`s Senior High School students.

This research result shown as 25,5% students having conduct risky behavior. even 4% of it had been ever conduct some sexual relation (intercourse). Through bivariate analysis known that parenting style related with sexual behavior with OR 3,258. Multivariate analysis got result that there is no relation between parenting style with sexual behavior alter amount variable attitude towards sexual behavior, sum of boyfriend or girlfriend. and pomography media exposure, had been controlled. Obtain significant relation between sexual behavior with attitude toward sexual behavior (OR 3,138), sum ol' boyfriend or girllriend (OR 5,234) and pornography media exposure (OR 4,222). Obtain significant relation between parenting style with sum of boyfriend or girlfriend and pornography media exposure. The most dominant factor that related with sexual behavior of Government`s Senior High School students in Solok city year 2008 is sum of boyfriend or girlfriend after attitude variable toward sexual behavior and pornography media exposure had been controlled.

The significant relation between sexual behavior with sex, puberty age, peer communication, and time duration of date with boyfriend or girlfriend is not found. The relation between sexual health knowledge with sexual behavior is not found after attitude variable toward; sexual behavior, sum of boyfriend or girlfriend and pomography media exposure had been controlled.

Based on this research its necessary to improve the students knowledge about sexual health trough teenager's reproduction health education at school and teenager care health services. Parents suggest to observe their daughter or son especially in boyfriend or girlfriend relationship and pornography media exposure. Improvement of student knowledge about sexual health trough education oftcenager health reproduction and teenager health care services are necessary.