Lawrence Block wrote 'Threesome' under the pseudonym of Jill Emerson. Another classic of early Block erotica, it followed on from 'I Am Curious (Thirty)'. A classic of early Block erotica, and is as good for its vivid descriptions of Rhoda, Harry and Priscilla's sexual exploits as it is for the Freud quotes included such as "Sometimes a cigar is just a cigar" and "The paranoid is never entirely mistaken."