gs-mantis  choujigen game neptune neptune (series)  nepgear purple sister  1girl 3boys 3d ahegao armor belly bikini armor blue eyes blue shorts bodysuit bottomless breasts dark-skinned male female groping group huge penis kneeling light-skinned female male multiple boys navel open clothes open hands open mouth penis penis grab pink hair purple eyes red shirt shiny shiny skin shirt shorts slit pupils teeth tongue tongue out veins veiny penis white shirt wide hips