Verified by Psychology Today. In Excess. I started with that anecdotal observation just by way of establishing that sex and cigarette smoking are quite literally not so strange bedfellows. However, for a small minority of people, smoking in and of itself can be sexually arousing and for some may even be a sexual paraphilia called capnolagnia. Anil Aggrawal in his book Forensic and Medico-legal Aspects of Sexual Crimes and Unusual Sexual Practices defines capnolagnia as a sexual paraphilia in which individuals derive sexual pleasure and sexual arousal from watching others smoke.