The rest of the semester went perfectly, Susan arriving on time, prepared and interested, making the tutoring a pleasure for both. The sex was equally outstanding, both enjoying it as delightful recreation. Robert now used all three of Susan's apertures, but he was particularly pleased with her willingness to be buggered. He assumed that he had introduced her to that aberrant practice, and was really gratified to find that she welcomed his continued penetration of her ass. Actually, Susan had been quite surprised, even shocked at herself, when he had suggested anal intercourse the next time. She had come to Robert's apartment the Monday following the Thursday when he had whipped her, not knowing quite what to expect or what she wanted. To her relief, Robert proposed going right to work right away and she was soon as ease, going through the assignment and discussion with aplomb.
However, when the "class work" was over and the "recreation period" arrived, she became nervous again – why she didn't know, since she expected the usual screwing and sucking. When she was naked, Robert began fondling and caressing her as usual, and then, not really to her surprise, led her over to the table where he had buggered her the last time. The real surprise came when, without being instructed, Susan simply spread her legs wide, bent over the table, and reached back for her ass cheeks. She had looked at her reflection in the mirror at home and had been horribly embarrassed, but now, shockingly, and not really understanding herself, she voluntarily reached back and pulled the cheeks apart as wide as they would go, reveling in the wanton display she knew she was making. She had thought of Robert wanting her like that again, and had been embarrassed even thinking of him seeing her in that position. Now, however, something seemed to explode in her mind and, suddenly, being bent over the table, completely exposed and open, knowing that everything was visible, excited her beyond belief.
Somehow it made her feel pleasantly depraved and degenerate to deliberately pull herself open and expose her asshole, as well as her cunt, to his eyes. She held herself wide as possible until his cock began its entrance, moving her hands, then, to grasp the top edge of the table as he sank into her. As he sodomized her, she relished lying there, face down and bent over, being used, fucked – completely under his control like a slave girl, his cock plunging in and out like a piston.
Later, of course, she castigated herself for such an obscene act, not understanding how abasing herself so thoroughly could have aroused her so much. Once again, she bent over in front of the mirror and, once again, was appalled by what she saw. Still, even then, she felt a perverted thrill ripple through her as she thought of being so exposed, and, reluctantly, she admitted to herself that she wanted to do it again. Finally, she relaxed and took the advice that Jean had given her many times: "If it excites you and doesn't hurt anyone else, don't worry about why it feels good, just do it!" From that time on, for the rest of the semester, she just let herself enjoy her blatant and indecent display every time Robert wanted to fuck her ass – which was frequent.
For Robert, this visiting professorship had turned out to be the best, at least sexually, that he had ever enjoyed. He had a beautiful, happily married woman who would enthusiastically participate in virtually any form of erotic activity he desired. Her mouth, cunt and ass were available twice a week and he had none of the trappings of an unwanted "love affair." He could look forward to those two afternoons as pleasant sexual and academic encounters with no worries about uncomfortable ties and strings that would have to be cut at semester's end. So, for an itinerant professor, things were about as perfect as they could be. In fact, when the semester finally drew to a close, Robert, for the first time that he could remember, found himself regretting the need to return home.
However, while the regular twice-a-week trysts were over with, that did not preclude several spur of the moment encounters. For example, on graduation day, Susan received her master's degree, walking proudly across the stage in her formal robes to receive her diploma and the congratulations of the graduate dean as Jim, Jean, Don and Robert applauded loudly. After the ceremony, Jean and Don left for home while the other three went to a departmental reception for the graduates. The room was full of faculty and students, arrayed in their archaic academic gowns, their hoods draped down their backs displaying their field and school colors. Most resplendent of all was Robert in his (rented) scarlet gown from Oxford, standing out like a beacon in the crowd of plain black robes. As a faculty wife earning an advanced degree, Susan was the center of attention for a time – a heady experience. As the crowd began to thin out, Susan found herself almost alone and, glancing up, saw Robert looking at her. When he was sure that he had caught her eye, he, with a quick motion, nodded with his head toward the hallway. Not knowing just what he wanted, Susan, however, excused herself and went into the hallway, with one of the other women, toward the restroom. Coming out alone, she was not surprised to see Robert several doors further down, standing in the open door of his office.
She quickly looked around to make sure that no one else was in sight and hurried down the hall and through the door. Taking her by the arm and leading her over to his desk, Robert whispered, "I'd hoped that I could get you alone but I was beginning to 'wonder! Here, lean over." With that, he bent Susan over the desk, reached down and raised her gown and skirt over her back and, with little difficulty, worked her sheer panties down her legs and off. Tossing them onto the desk, he pulled his crimson robe open, took out his cock and, after using his finger to bring lubrication out of her cunt onto the cunt lips, he entered her.
She was very wet inside, and he was able to sink in completely with one thrust. Not taking time for the usual slow buildup, he began a vigorous fucking motion almost immediately. As he pounded in and out, Susan quickly responded, grinding back against him, welcoming the hammering of her crotch. The circumstances – bent over a desk being screwed in an academic office on her graduation day, the danger with all the people, including her husband, nearby – created an excitement and stimulation that sent waves of lust through her.
Her passion was matched by that of Robert, and, very shortly, he erupted, sending streams of cum deep into her vaginal passages. Surging tightly against her, he held his cock inside as tightly as possible in the last throes of his climax. Susan, also, reached orgasm, arching her ass into the air, pushing her cunt back as hard as she could against him, seemingly trying to force both his cock and balls into her gaping cavity.
The climax, of course, lasted only for a few moments, and recognizing the need to hurry, Robert quickly pulled his semi-hard cock out of her and, with an effort, managed to cram it back into his pants. Susan, relieved of his weight (and penetration), straightened up, her skirt and robe falling back into place. Hurriedly, and without a word, Robert peeked out of the office door, saw that the hall was empty, and waved her out. She walked, almost ran, back as far as the restroom, and, then, once past it, slowed her pace as if she had just come out. Her heart was beating at double time as she wondered if anyone had missed her.
As she entered the reception room, she had a moment of sheer panic for no reason, and as she told Jean later, she, for the first time, realized what Jean had gone through that night when her breasts and cunt had been fondled under her red dress. Somehow Susan just knew that everyone was looking at her surreptitiously, that her forehead must have a gigantic red A emblazoned on it. She really felt like an adulteress, a scarlet woman, as she joined the small group that was left, almost expecting to hear, leeringly, "Where have you been?"
