Book of Sex is a massive site with a lot of members in the intimate encounter department. According to the site it has more than 30 million members worldwide.
Book of Sex is another site from the Friendfinder network, which means it has agreat foundation and stellar features that can be found in Adult Friend Finder.
The site has a super sexy layout, provides plenty of tools to communicate and is easy to navigate. But if you like what’s offered here, you may want to weigh your options between Book of Sex and Adult Friend Finder.