After her emotional interview with talk show host Oprah Winfrey a few days ago, Bobbi Kristina, the daughter of late singer Whitney Houston has made headlines, this time for her alleged inappropriate relationship with her adopted brother Nicholas Gordon. Both Nicholas and Bobbi have denied their alleged relationship, but many inside sources claim to know that they are indeed dating and that Cissy Houston, Whitney’s mother is unhappy about this relationship. Bobbi are not related by blood but legally they are considered to be siblings. In a case such as this can we say this is incest?