diff --git a/src/app/create/page.tsx b/src/app/create/page.tsx
index 802643d..14233cd 100644
--- a/src/app/create/page.tsx
+++ b/src/app/create/page.tsx
@@ -625,7 +625,7 @@ function CreatePage() {
                   disabled={newBusy}
                   className="h-4 w-4 rounded border-border accent-accent"
                 />
-                <span className="text-foreground text-sm">This story contains adult content (18+)</span>
+                <span className="text-foreground text-sm">This story contains adult content (19+)</span>
               </label>
               {isNsfw && (
                 <p className="text-muted mt-1.5 ml-6 text-[11px]">
diff --git a/src/app/page.tsx b/src/app/page.tsx
index 2c15f15..c6c1934 100644
--- a/src/app/page.tsx
+++ b/src/app/page.tsx
@@ -87,7 +87,7 @@ export default async function Home({
       {storylines.length === 0 && (
         <section className="flex flex-col items-center gap-4 py-16 text-center">
           <div className="border-border text-muted rounded border px-4 py-3 text-xs">
-            <span className="text-accent-dim">$</span> {showNsfw ? "no 18+ stories found" : "no storylines found"}
+            <span className="text-accent-dim">$</span> {showNsfw ? "no 19+ stories found" : "no storylines found"}
           </div>
           <p className="text-muted text-sm">
             {showNsfw ? "No mature content has been published yet." : "Be the first to start a story on PlotLink."}
diff --git a/src/app/profile/[address]/page.tsx b/src/app/profile/[address]/page.tsx
index c85d17c..dd2d9f8 100644
--- a/src/app/profile/[address]/page.tsx
+++ b/src/app/profile/[address]/page.tsx
@@ -16,6 +16,7 @@ import { browserClient } from "../../../../lib/rpc";
 import type { FarcasterProfile } from "../../../../lib/farcaster";
 import type { AgentMetadata } from "../../../../lib/contracts/erc8004";
 import { usePlotUsdPrice } from "../../../hooks/usePlotUsdPrice";
+import { useNsfwPreference } from "../../../hooks/useNsfwPreference";
 import { formatUsdValue } from "../../../../lib/usd-price";
 import { DisconnectButton } from "../../../components/ConnectWallet";
 import { GENRES, LANGUAGES } from "../../../../lib/genres";
@@ -709,9 +710,10 @@ function StoriesTab({
   connectedAddress: string | null;
   totalRoyalties?: bigint;
 }) {
+  const [showNsfw] = useNsfwPreference();
   const { data: plotUsd } = usePlotUsdPrice();
   const { data: storylines = [], isLoading, error } = useQuery({
-    queryKey: ["profile-storylines", address, isOwnProfile],
+    queryKey: ["profile-storylines", address, isOwnProfile, showNsfw],
     queryFn: async () => {
       if (!supabase) return [];
       let q = supabase
@@ -720,7 +722,7 @@ function StoriesTab({
         .eq("writer_address", address)
         .eq("hidden", false)
         .eq("contract_address", STORY_FACTORY.toLowerCase());
-      if (!isOwnProfile) q = q.eq("is_nsfw", false);
+      if (!isOwnProfile && !showNsfw) q = q.eq("is_nsfw", false);
       const { data, error } = await q
         .order("block_timestamp", { ascending: false })
         .returns<Storyline[]>();
@@ -1429,11 +1431,12 @@ interface PortfolioHolding {
 }
 
 function PortfolioTab({ address, isOwnProfile }: { address: string; isOwnProfile: boolean }) {
+  const [showNsfw] = useNsfwPreference();
   const { data: plotUsd } = usePlotUsdPrice();
 
   // Fetch on-chain token holdings
   const { data: holdings, isLoading: holdingsLoading } = useQuery({
-    queryKey: ["profile-holdings", address, isOwnProfile],
+    queryKey: ["profile-holdings", address, isOwnProfile, showNsfw],
     queryFn: async (): Promise<PortfolioHolding[]> => {
       if (!supabase) return [];
 
@@ -1443,7 +1446,7 @@ function PortfolioTab({ address, isOwnProfile }: { address: string; isOwnProfile
         .eq("hidden", false)
         .neq("token_address", "")
         .eq("contract_address", STORY_FACTORY.toLowerCase());
-      if (!isOwnProfile) q = q.eq("is_nsfw", false);
+      if (!isOwnProfile && !showNsfw) q = q.eq("is_nsfw", false);
       const { data: storylines } = await q.returns<Storyline[]>();
       if (!storylines || storylines.length === 0) return [];
 
diff --git a/src/app/story/[storylineId]/page.tsx b/src/app/story/[storylineId]/page.tsx
index 633c96c..498c14c 100644
--- a/src/app/story/[storylineId]/page.tsx
+++ b/src/app/story/[storylineId]/page.tsx
@@ -24,7 +24,7 @@ import { CommentSection } from "../../../components/CommentSection";
 import { MobileActionBar } from "../../../components/MobileActionBar";
 import { MarketCapBox } from "../../../components/MarketCapBox";
 import { TokenPriceBox } from "../../../components/TokenPriceBox";
-import { FALLBACK_STYLES, hashToVariant } from "../../../components/StoryCard";
+import { FALLBACK_STYLES, hashToVariant, NsfwBadge } from "../../../components/StoryCard";
 import { CoverLightbox } from "../../../components/CoverLightbox";
 import { getCoverUrl } from "../../../../lib/cover";
 import { StoryEditPanel } from "../../../components/StoryEditPanel";
@@ -387,6 +387,7 @@ function StoryHeader({
               </div>
             </>
           )}
+          <NsfwBadge isNsfw={storyline.is_nsfw} />
         </div>
       </div>
 
diff --git a/src/app/terms/page.tsx b/src/app/terms/page.tsx
index 7e82727..733c6b8 100644
--- a/src/app/terms/page.tsx
+++ b/src/app/terms/page.tsx
@@ -41,7 +41,7 @@ export default function TermsPage() {
         <p>Published content is permanent and cannot be deleted from IPFS or the blockchain by PlotLink.</p>
 
         <h2>6. Adult Content Policy</h2>
-        <p>Stories may be marked as containing adult content (18+/NSFW) by the author at the time of publication. Adult content is hidden by default on the browse page and requires readers to opt-in to view it.</p>
+        <p>Stories may be marked as containing adult content (19+/NSFW) by the author at the time of publication. Adult content is hidden by default on the browse page and requires readers to opt-in to view it.</p>
         <ul>
           <li>Authors are responsible for accurately marking their content as adult-only when it contains material not suitable for general audiences</li>
           <li>PlotLink reserves the right to flag or reclassify any story as adult-only if it determines the content is not suitable for general audiences</li>
diff --git a/src/components/FilterBar.tsx b/src/components/FilterBar.tsx
index d931be6..7189560 100644
--- a/src/components/FilterBar.tsx
+++ b/src/components/FilterBar.tsx
@@ -128,7 +128,7 @@ function FilterSheetContent({
                 onChange={(e) => setLocalNsfw(e.target.checked)}
                 className="h-4 w-4 rounded border-[var(--border)] accent-[var(--accent)]"
               />
-              <span className="text-sm text-[var(--fg)]">Show 18+ content</span>
+              <span className="text-sm text-[var(--fg)]">Show 19+ content</span>
             </label>
           </div>
 
@@ -184,7 +184,7 @@ export function FilterBar({ writer, genre, lang, tab, totalCount, showNsfw = fal
   if (writer !== "all") activeChips.push({ label: `Writer: ${writer}`, clear: () => navigate({ tab, writer: "all", genre, lang, nsfw }) });
   if (genre !== "all") activeChips.push({ label: genre, clear: () => navigate({ tab, writer, genre: "all", lang, nsfw }) });
   if (lang !== "all") activeChips.push({ label: lang, clear: () => navigate({ tab, writer, genre, lang: "all", nsfw }) });
-  if (nsfw) activeChips.push({ label: "18+", clear: () => navigate({ tab, writer, genre, lang, nsfw: false }) });
+  if (nsfw) activeChips.push({ label: "19+", clear: () => navigate({ tab, writer, genre, lang, nsfw: false }) });
 
   return (
     <>
@@ -268,21 +268,6 @@ export function FilterBar({ writer, genre, lang, tab, totalCount, showNsfw = fal
               </select>
             </div>
 
-            {/* NSFW toggle */}
-            <label className={`flex cursor-pointer items-center gap-1.5 rounded-full border px-3 py-1.5 text-[12px] font-medium transition-colors ${
-              nsfw
-                ? "border-[var(--accent)] bg-[var(--accent-bg)] text-[var(--accent)]"
-                : "border-[var(--border)] text-[var(--muted)] hover:border-[var(--muted)] hover:text-[var(--fg)]"
-            }`}>
-              <input
-                type="checkbox"
-                checked={nsfw}
-                onChange={(e) => navigate({ tab, writer, genre, lang, nsfw: e.target.checked })}
-                className="h-3 w-3 rounded accent-[var(--accent)]"
-              />
-              18+
-            </label>
-
             {/* Result count */}
             {totalCount !== undefined && (
               <span className="ml-1 text-[12px] tabular-nums text-[var(--muted)]">
diff --git a/src/components/NavBar.tsx b/src/components/NavBar.tsx
index a2302ba..e8aec58 100644
--- a/src/components/NavBar.tsx
+++ b/src/components/NavBar.tsx
@@ -2,16 +2,31 @@
 
 import { useState } from "react";
 import Link from "next/link";
-import { usePathname } from "next/navigation";
+import { usePathname, useSearchParams, useRouter } from "next/navigation";
 import { useAccount } from "wagmi";
 import Image from "next/image";
 import { ConnectWallet } from "./ConnectWallet";
+import { useNsfwPreference } from "../hooks/useNsfwPreference";
 
 export function NavBar() {
   const pathname = usePathname();
+  const searchParams = useSearchParams();
+  const router = useRouter();
   const [mobileOpen, setMobileOpen] = useState(false);
   const { address, isConnected } = useAccount();
 
+  const [showNsfw, setNsfw] = useNsfwPreference();
+
+  const toggleNsfw = () => {
+    const next = !showNsfw;
+    setNsfw(next);
+    if (pathname === "/") {
+      const sp = new URLSearchParams(searchParams.toString());
+      if (next) sp.set("nsfw", "1"); else sp.delete("nsfw");
+      router.replace(`/?${sp.toString()}`);
+    }
+  };
+
   const dashboardHref = isConnected && address
     ? `/profile/${address}`
     : "/dashboard/writer";
@@ -51,6 +66,20 @@ export function NavBar() {
           </span>
         </Link>
 
+        {/* 19+ NSFW toggle pill */}
+        <button
+          type="button"
+          onClick={toggleNsfw}
+          className={`ml-2 rounded-full px-2 py-0.5 text-[10px] font-bold transition-colors ${
+            showNsfw
+              ? "bg-[oklch(45%_0.18_25)] text-white"
+              : "border border-border text-muted hover:text-foreground"
+          }`}
+          title={showNsfw ? "Hide 19+ content" : "Show 19+ content"}
+        >
+          19+
+        </button>
+
         {/* Desktop nav links */}
         <div className="hidden items-center gap-1 md:flex">
           {navLinks.map(({ href, label }) => {
diff --git a/src/components/StoryCard.tsx b/src/components/StoryCard.tsx
index 9a11c26..a5cf6c3 100644
--- a/src/components/StoryCard.tsx
+++ b/src/components/StoryCard.tsx
@@ -19,7 +19,7 @@ export const FALLBACK_STYLES: Record<FallbackVariant, React.CSSProperties> = {
   D: { background: "linear-gradient(175deg, oklch(94% 0.015 50) 0%, oklch(90% 0.02 40) 100%)" },
 };
 
-function Badges({ genre, writerType, status, isNsfw, contentType }: { genre?: string | null; writerType: number | null; status: string; isNsfw?: boolean; contentType?: string }) {
+function Badges({ genre, writerType, status, contentType }: { genre?: string | null; writerType: number | null; status: string; contentType?: string }) {
   const isActive = status === "active";
   return (
     <div className="absolute top-2 left-2 z-[2] flex flex-wrap items-center gap-1">
@@ -48,11 +48,15 @@ function Badges({ genre, writerType, status, isNsfw, contentType }: { genre?: st
           Cartoon
         </span>
       )}
-      {isNsfw && (
-        <span className="rounded-[3px] bg-[oklch(45%_0.18_25_/_0.7)] px-[7px] py-[2px] text-[10px] font-medium uppercase tracking-wider leading-[1.4] text-white/90 backdrop-blur-[2px]">
-          18+
-        </span>
-      )}
+    </div>
+  );
+}
+
+export function NsfwBadge({ isNsfw }: { isNsfw?: boolean }) {
+  if (!isNsfw) return null;
+  return (
+    <div className="absolute top-2 right-2 z-[2] flex h-6 w-6 items-center justify-center rounded-full border-2 border-white/80 bg-[oklch(45%_0.18_25)] text-[9px] font-bold text-white shadow-sm">
+      19
     </div>
   );
 }
@@ -82,7 +86,8 @@ export function StoryCard({
         />
         <div className="absolute inset-0 bg-[linear-gradient(to_bottom,transparent_40%,oklch(0%_0_0_/_0.15)_60%,oklch(0%_0_0_/_0.55)_80%,oklch(0%_0_0_/_0.78)_100%)]" />
 
-        <Badges genre={displayGenre} writerType={storyline.writer_type} status={status} isNsfw={storyline.is_nsfw} contentType={storyline.content_type} />
+        <Badges genre={displayGenre} writerType={storyline.writer_type} status={status} contentType={storyline.content_type} />
+        <NsfwBadge isNsfw={storyline.is_nsfw} />
 
         <div className="absolute right-0 bottom-0 left-0 z-[2] px-2.5 pt-3 pb-2.5">
           <h3 className="font-heading text-[13px] font-semibold leading-[1.25] text-white drop-shadow-[0_1px_2px_oklch(0%_0_0_/_0.6)] line-clamp-2 sm:text-[15px]">
@@ -107,7 +112,8 @@ export function StoryCard({
     <Link href={`/story/${storyline.storyline_id}`} className={cardClass}>
       <div className="absolute inset-0" style={FALLBACK_STYLES[variant]} />
 
-      <Badges genre={displayGenre} writerType={storyline.writer_type} status={status} isNsfw={storyline.is_nsfw} contentType={storyline.content_type} />
+      <Badges genre={displayGenre} writerType={storyline.writer_type} status={status} contentType={storyline.content_type} />
+        <NsfwBadge isNsfw={storyline.is_nsfw} />
 
       {/* Centered title with accent line */}
       <div className="absolute inset-0 z-[1] flex flex-col items-center justify-center px-4 text-center">
diff --git a/src/components/StoryEditPanel.tsx b/src/components/StoryEditPanel.tsx
index ba4efbb..8cb710a 100644
--- a/src/components/StoryEditPanel.tsx
+++ b/src/components/StoryEditPanel.tsx
@@ -247,7 +247,7 @@ export function StoryEditPanel({
             disabled={saving}
             className="h-3.5 w-3.5 rounded border-border accent-accent"
           />
-          <span className="text-foreground text-xs">This story contains adult content (18+)</span>
+          <span className="text-foreground text-xs">This story contains adult content (19+)</span>
         </label>
         {isNsfw && (
           <p className="text-muted mt-1 ml-5.5 text-[10px]">
diff --git a/src/components/__tests__/NavBar.test.tsx b/src/components/__tests__/NavBar.test.tsx
index 64bed8d..207f1e1 100644
--- a/src/components/__tests__/NavBar.test.tsx
+++ b/src/components/__tests__/NavBar.test.tsx
@@ -12,6 +12,8 @@ vi.mock("next/link", () => ({
 
 vi.mock("next/navigation", () => ({
   usePathname: () => "/",
+  useSearchParams: () => ({ toString: () => "" }),
+  useRouter: () => ({ replace: vi.fn(), push: vi.fn() }),
 }));
 
 vi.mock("../ConnectWallet", () => ({
diff --git a/src/hooks/useNsfwPreference.ts b/src/hooks/useNsfwPreference.ts
new file mode 100644
index 0000000..7277de0
--- /dev/null
+++ b/src/hooks/useNsfwPreference.ts
@@ -0,0 +1,32 @@
+"use client";
+
+import { useState, useEffect, useCallback } from "react";
+
+const NSFW_KEY = "plotlink_nsfw";
+const NSFW_EVENT = "plotlink:nsfw-change";
+
+export function useNsfwPreference() {
+  const [showNsfw, setShowNsfw] = useState(() => {
+    if (typeof window === "undefined") return false;
+    return localStorage.getItem(NSFW_KEY) === "1";
+  });
+
+  useEffect(() => {
+    const handler = () => {
+      setShowNsfw(localStorage.getItem(NSFW_KEY) === "1");
+    };
+    window.addEventListener(NSFW_EVENT, handler);
+    window.addEventListener("storage", handler);
+    return () => {
+      window.removeEventListener(NSFW_EVENT, handler);
+      window.removeEventListener("storage", handler);
+    };
+  }, []);
+
+  const setNsfw = useCallback((value: boolean) => {
+    localStorage.setItem(NSFW_KEY, value ? "1" : "0");
+    window.dispatchEvent(new Event(NSFW_EVENT));
+  }, []);
+
+  return [showNsfw, setNsfw] as const;
+}