ameri-kun ass bare_shoulders belt blush brain breast_grab breasts cervix creature creature_inside crotch dog_tags fallopian_tubes gun hair_pull hands_in_pants interspecies lineart monochrome monster original panties panty_pull parasite pipes ponytail pregnant pussy shorts tank_top tears tentacle tentacles_under_clothes unbirth uterus vaginal vaginal_insertion x-ray  1girl absorption ameri-kun ass bare_shoulders belt blush brain breast_grab breasts butt_crack cervical_penetration cervix creature creature_inside crotch dog_tags fallopian_tubes fusion grabbing gun hair_pull hands_in_pants intorsus_volo laser lineart midriff monochrome monster open_mouth original panties panty_pull parasite parted_hair penetration pipes pistol ponytail pregnant pussy shorts surprised tank_top tears tentacle tentacles_under_clothes unbirth underwear uterus vagina vaginal weapon x-ray