This category contains sexual, violent, or otherwise inappropriate themes, and is reserved for pages that should only be viewed by users 18 or older.
“"Undertail" is Undertale's R34 label, requested by Toby Fox to separate NSFW Undertale fanart...Undertail
“Under(her)tail is an NSFW AU with a more light hearted tone than Underlust. Not the most...Under(her)tail
“Asgore was involved in the battle of New St. Louis in northern Africa in an attempt to take the...UnderWar
Pages in category "NSFW"
The following 29 pages are in this category, out of 29 total.