nephew

As a BDSM role, nephew can be defined in two ways:

1. Similar to a Daddy's boy, but one who has a more tenuous, less defined connection to the older and/or more Dominant man in the role-play dynamic. When you don't know what to call the young man who's been hanging out and/or hooking up with you, you call him your nephew.
2. Similar to a son, but whereas Dad/son role-play is generally defined by obedience and nurturance, Uncle/nephew role-play involves more perverse, less wholesome desire. Imagine a horny nephew crushing on his cool, hot Uncle or a dirty, pervy Uncle lusting after his cute, innocent nephew.