Portal sites are site designed to feed you traffic.      There are varied opinions on portal sites I have my own concept and have had much luck developing it!    The idea of a portal is to draw traffic that you can push to your own personal blog, sell some memberships on pay sites, gain bookmarkers and create backlinks to your personal blog to raise its rankings in SEO.

While your personal blog probably uses phone sex and other similar keywords.      A portal site can focus on one niche.     So if your character is slutty sexy Milf you might take lots of Oral Sex calls.     So make a portal site focused on Oral Sex.     Include various sub-niches Deep Throating, Facials, Lipstick, Bukkake etc.    A portal is mostly set it up and forget it!

Think of the portal as a way for surfers to feel they have found the ultimate authority site on your niche.   When they hit the home page they might various sections - maybe recordings (free and for sale) of you doing some oral sex phone bone, a review section with your opinion on various oral sites, links to movies of the days etc… use your imagination!     Most importantly include ads to your personal blog.