As above, google does see them as separate sites and might remove duplicate content from one of the domains. In reality tho google has never dropped any of my pages ever for being duplicates,they rank don't rank as well tho.
pornowls.com --> loads index
www.pornowls.com only 680, I can see all those getting dropped as they are technically on a sub domain on the same site
AND duplicate. Dealing with the GMan is consistnetly a pain in the arse. Oh as an edit I cant say which domain they would be dropped from could be either.