Threesomes aren't the be all and end all of more-than-two sex, foursomes and moresomes are also common in some fetish clubs and sex-positive social circles, and sex involving four or more people is often referred to as 'group sex'. There's more than one form of group sex - there's the gangbang, for example, where a group of people are all focused on one individual, and there's the orgy, which is more of a free-for-all. People of all and any sexualities and gender identities can enjoy group sex in the right context, and it's a great way to live out some of your deeper and darker fantasies.
Safer sex is even more important in group situations than it is in most others, as there's a far higher chance of picking up something you didn't want when you have more partners at once. You should also have consent negotiations before, during and after--it's vital to make sure that everyone is happy, comfortable and on the same page.
The 'classic' gangbang situation is one woman being fucked by a group of men at once. It's likely to involve double or triple penetration and sometimes ends up with some pretty intense cumshots. There are plenty of variations on the theme, of course, people of all sexualities and gender identities can enjoy a good gangbang - but the core concept is a whole group of people all concentrating on having their way with a single sub. Many BDSM fans find that this is a common and highly enticing fantasy, particularly if they're into the idea of sexual humiliation.
The debate regarding pubic hair has been raging since at least the seventies, and probably longer. At the end of the day, we here at Fetish.com support free choice - and whether you like it long, short, shaped or natural, your pubic hair preferences are okay. Preferences for a partner's pubes can go either way; some prefer the natural look while others get off on the sight of a genital region shaved or waxed completely clean. Whatever your preference is, it's important that you don't make your partners feel obliged to abide by it - it's their body and they can set their own rules!