If I might add some perspective from my own experiences. Conferences can be dangerous if you regard some guy getting to have your wife's pussy as a danger, or a great thrill if you long for that. My ex had told me about this middle-aged guy in her line of work who was a fixture at their business conferences. This was a guy of significant prestige among his business associates. But she said he had a reputation for hanging out in the hotel bars and either getting ***** or hitting on the younger women at the conferences, apparently with some success. Unfortunately for me, I was very good at denying the evidence that my ex was letting guys cuckold me, and this included ignoring warning signs. In this case, it is striking that she would be hanging out in a hotel bar, since she knew he was hot for her, and of course would be there, and since she didn’t drink much, all warning signs I missed. The guy was apparently handsome enough, and she may have heard from other girls about his skills in bed.
So, she taunted me afterwards (she would always claim she was joking if I took it too seriously) that this middle-aged guy was persistent in hitting on her in the bar. She agreed to go up to his room. She did not mention anything about the elevator ride up, but presumably he started to kiss her and feel her up, because by the time they got to his room door, she claimed, he had already begun undressing her. Since conference hotel rooms are not very big, the removal of her clothes took place quickly on the way to the bed. First her jacket, blouse and bra were opened up the front so he could fondle her breasts. By this time, they were at the bed, onto which he pushed her back, and as she described it “he had my panties and stockings off in a flash.” The desire by this guy to start fucking my wife, and her willingness to take his cock were apparently so urgent, as she described it, that he began plowing her with her jacket, blouse, and bra still on, though fully opened. This energetic fury impressed her. Fortunately for her, his lust for having her did not interfere with the quality of his performance: making my humiliation worse, she reported in her account that “he fucked the hell out of me.”
It must have lasted some time, because as she described it, by the time he blew his load into her, her jacket, blouse and bra had long come off and she was under him taking his thrusts completely naked. After he had thoroughly fucked my wife in that first session, they lay together she said, with him continuing to kiss and fondle her breasts. She could of course have left at this point. But in short order she watched him begin to pop another erection. Fully erect, he rolled her over so she was face down on the bed, pushed her legs apart, and kneeling between her legs thrust his erection into her again. She never reported in her description of this night which position she found more gratifying, taking his cock from the front or from behind.
I have attached a few pictures of her from those days, taken by a "professional" photographer, she claimed (and yeah, he cuckolded me, as well). So if you're keen to have your wife cuckold you, by all means encourage her attendance at business conferences.