[MIRROR] Undersuit slot skeleton for prometheans (#12803)

Co-authored-by: Zerum <76460494+NateSaruli@users.noreply.github.com>

code/modules/client/preference_setup/loadout/loadout_xeno.dm

@@ -867,3 +867,11 @@
 	sort_category = "Xenowear"
 	whitelisted = SPECIES_ZADDAT
 	allowed_roles = list(JOB_CHIEF_ENGINEER,JOB_ATMOSPHERIC_TECHNICIAN, JOB_ENGINEER)
+
+/datum/gear/uniform/anthro_skeleton
+	path = /obj/item/clothing/under/anthro_skeleton
+	display_name = "Anthro Skeleton"
+	description = "A standardized anthropomorphic skeleton commonly used by prometheans who struggle to maintain their outer body shape. It's made of plastic, just like the trusty model in the exam room."
+	slot = slot_w_uniform
+	whitelisted = SPECIES_PROMETHEAN
+	sort_category = "Xenowear"

code/modules/clothing/under/miscellaneous.dm

@@ -1716,3 +1716,20 @@
 	name = "reverse bunny suit"
 	desc = "A maid themed reverse bunny suit, literally just covers everything except the bits you're supposed to. Tails and ears sold seperately."
 	icon_state = "reverse_bunnytop_maid"
+
+/obj/item/clothing/under/anthro_skeleton
+	name = "Anthro Skeleton"
+	desc = "A standardized anthropomorphic skeleton commonly used by prometheans who struggle to maintain their outer body shape. It's made of plastic, just like the trusty model in the exam room."
+	icon = 'icons/vore/custom_clothes_item.dmi'
+	default_worn_icon = 'icons/vore/custom_clothes_mob.dmi'
+	icon_state = "anthro_skeleton"
+	body_parts_covered = 0
+	species_restricted = list("exclude", SPECIES_TESHARI)
+
+/obj/item/clothing/under/anthro_skeleton/mob_can_equip(mob/living/carbon/human/H, slot, disable_warning = FALSE, ignore_obstruction, go_over_slot = FALSE)
+	if(!..())
+		return FALSE
+	if(ishuman(H))
+		if(!(H.get_species() == SPECIES_PROMETHEAN))	//Only wearable by slimes, since species_restricted actually checks bodytype, not species
+			return FALSE
+	return TRUE