diff --git a/lib/Endpoints.js b/lib/Endpoints.js
index 29588d5..2be1f61 100644
--- a/lib/Endpoints.js
+++ b/lib/Endpoints.js
@@ -1,24 +1,29 @@
-module.exports = [
-  'sfw',
-  'nsfw',
-  'neko',
-  'lewdneko',
-  'shinobu',
-  'trap',
-  'bully',
-  'cry',
-  'hug',
-  'kiss',
-  'lick',
-  'pat',
-  'smug',
-  'highfive',
-  'nom',
-  'bite',
-  'slap',
-  'wink',
-  'poke',
-  'dance',
-  'cringe',
-  'blush'
-]
\ No newline at end of file
+module.exports = {
+  sfw: [
+    'waifu',
+    'neko',
+    'shinobu',
+    'bully',
+    'cry',
+    'hug',
+    'kiss',
+    'lick',
+    'pat',
+    'smug',
+    'highfive',
+    'nom',
+    'bite',
+    'slap',
+    'wink',
+    'poke',
+    'dance',
+    'cringe',
+    'blush'
+  ],
+  nsfw: [
+    'waifu',
+    'neko',
+    'trap',
+    'blowjob'
+  ]
+}
\ No newline at end of file
diff --git a/lib/WaifuPics.js b/lib/WaifuPics.js
index 911d8a9..336a8e0 100644
--- a/lib/WaifuPics.js
+++ b/lib/WaifuPics.js
@@ -1,13 +1,32 @@
 const fetch = require('node-fetch')
-const ENDPOINTS = require('./Endpoints.js')
+const endpoints = require('./Endpoints.js')
 
 const API_URL = 'https://waifu.pics/api'
 
+/**
+ * @param {string} endpoint An endpoint contained in {@link https://waifu.pics/api/endpoints}
+ * @returns {Promise}
+ */
+function request (method, endpoint, options = {}) {
+  return fetch(`${API_URL}${!endpoint.startsWith('/') ? `/${endpoint}` : endpoint}`, {
+    method,
+    ...options,
+    headers: {
+      'Content-Type': 'application/json'
+    }
+  })
+    .then(parseResponse)
+}
+
 async function parseResponse (response) {
   if (!response.ok) {
-    const failure = await response.text()
+    const failure = await response.json()
+
+    throw new Error(failure.message)
+  }
 
-    throw new Error(failure)
+  if (response.headers.get('content-type').startsWith('text/html')) {
+    throw new Error(`Category ${response.url.match(/\/\w+/g).pop().substr(1)} not found`)
   }
 
   return response.json()
@@ -15,25 +34,25 @@ async function parseResponse (response) {
 
 const WaifuPics = {
   /**
-   * @param {string} endpoint An endpoint contained in {@link https://waifu.pics/api/endpoints}
-   * @returns {Promise}
+   * @returns {Promise<Object>}
    */
-  fetch (endpoint) {
-    return fetch(`${API_URL}${!endpoint.startsWith('/') ? `/${endpoint}` : endpoint}`).then(parseResponse)
+  endpoints () {
+    return request('GET', '/endpoints')
   },
 
-  /**
-   * @returns {Promise<string[]>}
-   */
-  endpoints () {
-    return this.fetch('/endpoints')
-  }
+  many: {}
 }
 
-for (let endpoint of ENDPOINTS) {
-  WaifuPics[endpoint] = function () {
-    return this.fetch(endpoint)
-  }
-}
+Object.keys(endpoints).forEach((type) => {
+  WaifuPics[type] = {}
+  WaifuPics.many[type] = {}
+
+  endpoints[type].forEach((category) => {
+    const endpoint = `/${type}/${category}`
+
+    WaifuPics[type][category] = () => request('GET', endpoint)
+    WaifuPics.many[type][category] = (exclude) => request('POST', '/many' + endpoint, { body: JSON.stringify({ exclude }) })
+  })
+})
 
 module.exports = WaifuPics
\ No newline at end of file