Do you love your brother in an emotional romantic respect or just in lustful thinking? I had an issue with controlling my own urges toward my sister and i do regret what i did, i never slept with her nor did … But in english or otherwise, the term 'incest' is to describe sexual activity between family members, whether parental- and off-spring, uncle/aunt-niece/nephew, grandparent-grand- child, even cousin …