First of all, Nina Hartley is fucking adorable. She's smart, charming and genuinely cares whether you (that's right, you who are reading this right now) have amazing sex. While you're watching the first scene in which married couple Devon and Marcus have a threesome with Nina -- talking, explaining and laughing all the while -- you wish that you could have her around every time you wanted to fuck your lover, to give you words of encouragement, a vibrator and a bit of oral stimulation. And wouldn't you know it, after a number of very real orgasms on Devon's part, all three achieved the heretofore fabled simultaneous "O".