Derek, my grad student, and I sipped our coffees. 

"So, you and Casey spent six months in the wilds of New Guinea studying the sexual mores of with the K'daw people," I said to him. "What have you learned?"

"Well, the K'daw see semen as the embodiment of a man's dyo, his essence, his maleness, that he uses to dominate a woman."

 "Presumably by projecting his dyo into her?"

 Derek nodded. "The K'daw see women as the embodiment of softness and vulnerability. The Creators designed them not only to receive a man's hard flesh inside them, but to crave being thus dominated by men, who take their pleasure while taking them, thereby injecting their dyo into their most intimate, most quintessentially feminine, place. Where her very femininity is, he is there. She knows it, and can never forget it." 

"Marked for life." 

"Yep." 

"So what's in it for her, in being taken and dominated, as the K'daw believe?" 

"The pleasure of climax, a shattering orgasm, that can only be had by yielding wholly and completely to another, to not only being taken and dominated, as you said, but to need it." 

"Interesting." 

"The really interesting part, which I will not be including in my report…" 

"Why not?" 

"We'll get to that…is that the K'daw believe that there are men who secretly yearn, how shall I put it? to be feminized." 

"What?" 

"There are men who yearn to give up their dyo, to being taken and dominated." 

"By a K'daw dominatrix?" 

Derek smiled. "By another man." 

My pulse quickened. 

"How does a man give up his dyo?" 

"By having another man pleasure him until he yields it, willingly." 

"But why would he do this, if, as the K'daw believe, dyo is the embodiment of his essence?" 

"Why, for the naughty thrill of climax, an orgasm so shattering, that he can have it only by yielding wholly and completely to another man, because he needs it. But yielding their dyo is only half the picture." 

"What's the other half dare I ask?" 

"Receiving another man's dyo in place of his." 

"That would be an act of submission." 

"To be a willing vessel for another man's dyo? To need another man to take his pleasure inside you and inject his dyo into you, after he has sucked your own dyo out of you? To the K'daw, it is the ultimate act of surrender." 

I noticed that Derek had shifted to the second person. "It's an interesting philosophy." 

"True, but having been initiated by the K'daw elders into their secrets and taught how to locate, and prepare, a willing partner, I've engaged in, um, empirical research." 

"What, you find suitable gay men?" 

"No, I find suitable straight men." 

"How's that?" 

Derek smiled. "You'd be surprised how many ostensibly straight men, you know, on the lower end of the Kinsey scale, including happily married men, realize that deep within you there is a need aching to be fulfilled." 

Second person again; my heart raced. "Married men?" 

"A K'daw wife doesn't see it as adultery or 'cheating'." 

"No?"

 "No. She acknowledges that her husband has a need that she cannot fulfill and she is happy when her husband meets someone who can help him. But Newton's Third Law of Motion also holds here." 

"Meaning?"

"For every man who needs to be feminized, there is a man who needs to feminize. For every man who needs to surrender, there is a man who needs to dominate. The K'daw are monogamous, by the way." 

"Huh." 

Derek nodded. "Take…Prof. Jenkins, from the History Dept." 

"What about him?" 

"He yielded his dyo to me, and received mine, in the back seat of his car." 

I stared. 

"And Morelli from admin? He begged to be relieved of his dyo, and take mine, with his wife in the next room." 

My jaw dropped. 

"They needed it." 

I was silent. 

Thank God, but the waitress walked up to our table at that second. 

"Do you gentlemen want anything else?" 

"No thanks," Derek said, handing her a 20-dollar bill. "Keep the change." 

"Thanks!" She took the money and left. 

"Hey, c'mon, those clouds look like they're ready to burst, let me give you a ride." 

"Um, OK, thanks." I followed Derek to the stairs right outside the café and down the first three flights. 

"I'm all the way at the bottom," he said. 

I was just starting to breathe again when Derek shoved me into a corner and pulled down my pants. My cock popped free; I was hard, very. 

Without saying a word, Derek knelt, grabbed my cock and took me in his mouth. 

I thrilled to disappear inside him, moaning as he stroked the head and underside of my cock with his tongue. 

I vaguely thought about resisting but Derek was relentless and the pleasure was overwhelming. I threw my head back, banging it against the wall, and shouted as I climaxed, my whole body rocking as I came. Derek swallowed me whole, working my cock until I was utterly spent. 

He held me in his mouth as I softened, releasing me only when I was completely flaccid. 

Derek stood up. 

I knelt and opened my mouth. 

Derek dropped his pants, pulled out his erect cock, grabbed my head and repeatedly thrust into me. 

Derek had given me a blowjob. I was not repaying him in kind; he was fucking my mouth, hard, going in as far as he could without triggering my gag reflex. Finally, he groaned and erupted, pulsing down my throat. 

I gulped, swallowing as much of him as I could, and gasping for breath at the same time, while he took his full pleasure. 

Eventually, the pulses stopped and I held him, savoring the sublime feel and texture of a cock in my mouth. I felt myself starting to harden again. 

Derek stayed in my mouth as he softened, pulling out only when he was flaccid. "Now do you see why I'm leaving certain things out of my report?" 

I nodded weakly, lost in a haze. 

"Good." 

"Hey, where's Casey?" 

"I was wondering when you'd get around to her. It seems that K'daw women have a lore all their own about women who are curious about certain things and crave a certain relationship with other women, and that's all I know about it. I believe she's telling Prof. Whitford all about it. Do you still want that ride?" 

# 

Frances Whitford buried her face between Casey's legs on the floor of her office and licked Casey to her second orgasm. 

"That was heavenly," Casey gasped. "You've got the hang of it. You deserve a reward." Casey pulled on the vibrating glove.