You CANNOT save videos directly on to your iPhone, but you can download them to your PC/Mac and then sync them to your iPhone using the iTunes software.

The most important aspect of this is to get your porn movies in a format that the iPhone can use, and be sure that your chosen porn service has it's movies in an iPhone friendly format.

I only recommend using a reputable, well known service to avoid the risk of downloading viruses.

If you've yet to find a trusted provider, I highly recommended that you try out Brazzers Mobile. Membership gives you FULL access all 22 sites in the Brazzers network, from which you can download feature length porn movies in QuickTime format. You can try it out for just $2.95.

See some of the site listed on my Quickie List.

For more in-depth information of downloading iPhone porn, visit ipodhoney.com on your PC/Mac.