Dogmeat

Dogmeat is a creature living at the 188 Trading Post with his mistress, Lucia, and master, Owyn. He appears in Fertile Breeder.

Background
Lucia and Owyn came across Dogmeat on their way from The Hub to Nevada. Ever since, he has stuck with the siblings.

At some point, he and Lucia became sexually involved, with Lucia noting that she wanted to get sexual satisfaction without the risk of a following pregnancy, making Dogmeat an appealing partner to her. According to Lucia, Dogmeat knew what to do as soon as she offered herself.

Some time before the Courier comes across the pair, Dogmeat has managed to impregnate Lucia after she has gotten infected with the IHFM.

Interactions
Once the Courier has found Dogmeat in the desert, he will relocate to the 188 Trading Post with Lucia. Here, the Courier can offer herself to Dogmeat, potentially getting impregnated by him.