This is not how wildcard certificates work.
Wildcards are only for subdomains. I.e. a wildcard certificate for
example.com will apply also to all subdomains, e.g.
c.example.com etc. Basically you can view the wildcard expression as
There is (as far as I know) no way to have a single certificate that covers both
website2.com, except (as Farseeker pointed out in his comment) to issue a
*.com wildcard that would apply to all .com domains. No reputable certificate authority would ever issue such a certificate, and if they did they would cease to be reputable very quickly!