1. Buy one of those instant traffic providers to supply you with 10,000 hits within a week. You need to pay of course.
2. If you have a domain already generating good traffic, redirect the traffic to your parked site.
3. Buy software that will auto-generate fake traffic using proxies with different IPs.
4. Post the domain here and in hundreds of other forums and say you have managed to obtain Britney Spears exclusive nudey pics on your site.
5. Buy a PR article that will be spidered by Google News saying that you are the new owner of sex.com, and to contact you to buy it for $5k, go visit your _____ domain.