Having sex with more than one person at a time can prove to be quite the tricky experience, but once you figure out the logistics, it can be a hell of a lot of fun. Threesomes are kind of like sloppy, sticky, and (usually) drunk games of Twister — right hand on red! Left hand on butt! Right leg on t*t! Whole face on d*ck! Or something like that.
While some may have perfected the art of a working and fun threesome experience, not all will be so lucky. There's nothing worse than being the odd man out, sitting at the edge of a bed while two other people forget about you AND your genitals.
It's cool, don't worry about me — I'll just be wanking off over here with the lube of my tears and shattered ego.