<blockquote>Submitted for publication in the Journal for Xenocoital Studies.
Abstract: I present the first study of sexual relations between Vulcan and Human males, from a study of 100 sexual encounters with a single Human male. The time taken for the Human to achieve orgasm was measured under four types of contact: manual stimulation of the penis, oral stimulation of the penis, oral stimulation combined with digital contact with the anus, and anal penetration. The optimum parameters for producing orgasm are identified, and empirical relations are presented between the time taken to orgasm and the pressure of manual or oral stimulation or frequency of anal thrusts.</blockquote>