incestuously
adverb /ɪnˈsestʃuəsli/
/ɪnˈsestʃuəsli/
- in a way that involves sex between two people in a family who are very closely related
乱伦的；血亲相奸的 - (disapproving) between a group of people who have a close relationship and do not want to include anyone outside the group
小集团的；小团体的；排外的