Full Swing: A Study of Group Sex #3 (1971)

CONTENTS 

(03) John Roberts, The Advertised Orgy: Introduction
(12) Troilism
(18) Homosexual Orgies
(20) Wife Swappers
(33) Swingers
(46) Sex Clubs
(50) College Orgies
(53) Interracial Orgies
(58) Massage Parlors
(61) Models
(63) Conclusion
(65) Postscript