Duke

Duke is a Deathclaw in Fertile Breeder. He can impregnate the Courier at the Mojave Outpost, given the Courier has the right skills to seduce him.

Background
Duke was the first known Deathclaw to be born of an NCR soldier in the Mojave and kept alive. Upon being brought to the Mojave Outpost, Ssgt. Ian Mason put the young Deathclaw to use, having him impregnate any volunteers as part of the NMA.

Duke spends most of his days in the Mojave Outpost, impregnating or tending to his two most frequent mates: his mother, Eva Stone, and Lola Heartman.