On top of having already a tradition of breeding with outside tribes to consolidate their numbers, these brown jungle natives also have a strange tradition of adoption. Specifically, the young lads would offer themselves to ingest, or have their "adoptive father's" semen injected in their rectum. Their belief was that the receptive male partner would "adopt" the seed of those who mount them, or whom they suck and swallow, as a marker of becoming part of the bloodline.