Oral Female Possession Worm (Yumemi)

A worm shoving itself down Yumemi's throat.  She is from an anime called Munto.  There is a sequel called Munto 2.

Tentacle Parasite attacks Female Solider 1

It found its way in her pants, filled her vagina with its brain matter and is fusing with her uterus.  It will use her womb for life-support and take over her body.