Blocking domains in htaccess and looking up ip adress

[kalle7]

I seem to have a problem getting this domain blocking thing to work in htaccess:

This one works:
RewriteEngine On
RewriteCond %{HTTP_REFERER} ^http://www.top-teen-sex.com/
RewriteRule /* http://www.google.com [R,L]

But if I add one more domain to the blocking list it does not work anymore:
RewriteEngine On
RewriteCond %{HTTP_REFERER} ^http://www.top-teen-sex.com/
RewriteCond %{HTTP_REFERER} ^http://sex-in-school.com/
RewriteRule /* http://www.google.com [R,L]

Does anyone know what I am doing wrong and can suggest a better way to do this. I also tried the http://www.htaccesstools.com/block-hitbots/ , but it only works with one domain blocked. Drives me nuts lol