Background: Lack of reproductive health education and sexual knowledge impacts the increasing number of sexual violence cases. From 2000-2018, in 161 countries and territories worldwide, nearly 30% of women were victims of sexual violence. Specifically, one of the sexual deviation behaviors is premarital sexual behavior. This behavior is the result of biological development, thus encouraging sexual desire. Thus, sex education is needed so adolescents can understand the importance of sex education and health. Objective: This study aims to identify the needs of adolescents in sex education. Methods: This qualitative research used the descriptive method. This study was conducted by in-depth interviews with five participants aged 12-15 years in Kalirandu Hamlet, determined by purposive sampling. The data validity test was carried out using member checking, thick description, and peer debriefing. In data analysis, this research utilized open code 4.03 software. In addition, this research has received an ethical license issued by the ethics committee of FKIK UMY, with No. 066/EC-KEPK FKIK UMY/III/2022. Results:The results of this study revealed the needs of adolescents in sex education, including the need for appropriate materials, media, and methods of delivering sex education. Conclusion: The process of adolescent growth and development in sex education needs to get more attention. The lack of knowledge of adolescents to get to the adult phase can cause the incidence of deviant sexual behavior. Therefore, adolescents need to know the need for sex education so that they do not violate norms and can protect themselves from deviant sexual behavior.

Background: 60% of adolescents in Indonesia claim to have had premarital sex, and 50% of them have been diagnosed with HIV and AIDS. The lack of sex education influences the prevalence that occurs in adolescents. Besides, factors affecting sex education in adolescents are lack of access to information regarding sex education. Objective: This study aims to explore the needs of parents in providing sex education to adolescents. Method: This research is qualitative research with a descriptive method. This study was conducted through in-depth interviews with 9 informants, namely parents with adolescent children aged 10-15 years in Kalirandu, which was determined by purposive sampling. The data validity was measured using member checks, thick descriptions, and peer debriefing. In analyzing the data, this research used open code software 4.03. This research has received an ethical permit issued by the ethics committee of FKIK UMY number 008 / EC-KEPK FKIK UMY / I / 2022. It was declared ethically feasible in accordance with 7 (seven) WHO standards 2011. Result: The results showed that parents needed materials regarding sex education. They also needed media to convey the material, knowledge about providing or delivering sex education, and socialization, such as sex education counseling programs. Conclusion: The factors of free sex in adolescents included a lack of knowledge of sex education. Therefore, parents play a key role in providing sex education to adolescents to provide understanding so they can avoid free sex violating norms.