In a ZDNet UK article, experts predict that the name sex.eu will be a hot (of course!) issue in the next months, when registrations open.
Obviously, they forgot that the article 18 of the EC regulation forbids registrations contrary to the public policy, and "shall be blocked by the Registry upon notification of a Court decision and shall be revoked upon notification of a final court decision".
UPDATE: By the way, "sexeu" means nothing. But if you want to register a domain name which has a meaning, why not choose adi.eu, em.eu, f.eu, j.eu, l.eu, li.eu, mili.eu, par.eu, priedi.eu, purli.eu (all spotted in the Webster's Online Dictionary).