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	Recreational Swinger	~	Someone who practices swinging strictly for sexual encounters with no desire for friendship.
	Refractory Period	~	The recovery period after orgasm during which an individual cannot achieve another orgasm.
	Restraint	~	Any such item (ie ropes, hangcuffs, etc) which can be used to limit mobility of the submissive sex partner as a means to sexually stimulate both parties.
	Rimming	~	Orally stimulating the anus with the mouth and/or tongue. Scientifically known as Analingus
	Roman	~	A free for all where multiple orgies take place in the same room and, like an orgy, the sexual orientation of all involved is usually quite open and liberal with very tabboos.
	Rubber	~	Sexual stimulation through the use of rubber (clothing, restraints or whipping device), usually used in B&D. And of course the more common definition: a condom.