An adult creature implanting its egg into a warm vessel, the process doesn't stop until every egg has entered the victim's body. After the vessel has been filled, the eggs will assimilate together to form one mass, in this case, two large masses will be formed; one will mature inside her womb while the other matures in her digestive system. After a month they will attempt to exit the female as the victim is kept alive so that once the offspring are born they can feed on her milk to help nourish their first few days of life. Sometimes the adult creature will allow the victim to go free afterward, but because it has such a rare vessel it will hang onto it for a few more cycles of birth.