If you are worried about how your parents may react to the issue then you should consider telling a mental health counsellor who may be able to help you understand what you have done, the effects of these on your life and help you seek further help if necessary. If you find that you have continuously been experimented on by your brother or that you are continually experimenting with your brother then this is something you should certainly seek help about as it is not normal and may cause significant damage to you or your brother down the line. Continuously experimenting with your brother When specifically talking about intimate relationships with their family members., siblings that may have suffered trauma, neglect, or lack of affection may say they found in each other the love, support, and emotional connection they couldn’t get from their parents/carers. It is normal for adolescents to explore their sexuality and it doesn’t “occur in isolation, rather in the background of the family, society in a defined culture, which significantly influences the adolescent sexuality.” Adolescence can be divided into early (10-13 years), middle (14-16 years) and late (17-19 years), where it is normal to experience physical, hormonal and emotional changes, which sparks our sexual interest and need for experimentation.