Options +FollowSymLinks 
RewriteEngine On 
RewriteCond %{HTTP_REFERER} sharebutton\.to [NC,OR] 
RewriteCond %{HTTP_REFERER} offers.bycontext\.com [NC,OR] 
RewriteCond %{HTTP_REFERER} buttons-for-website\.com [NC,OR] 
RewriteCond %{HTTP_REFERER} domination\.nl [NC,OR] 
RewriteCond %{HTTP_REFERER} generalporn\.org [NC,OR] 
RewriteCond %{HTTP_REFERER} youporn-forum\.ga [NC,OR] 
RewriteCond %{HTTP_REFERER} buttons-for-website\.com 
RewriteRule .* – [F]