God it was hot. She worked my cock like a mad woman. I could picture her lips up against the wall as she buried my cock deep into her throat. I felt h...r gag a few times. It was amazing. She was determined to give my cock the sucking of a lifetime.After a few minutes of this amazing blowjob, she stopped. I was a little confused. I then get a knock on my door, so I peek out and it's her, so I let her in. She's got her purse, from which she pulls out several bondage items. She first being a. Her voice dropped to hushed tones and instead of a reprimand she found herself saying,"You'd better be sure of what you want before you try to get it."For the first time Mark looked up at her. "What?" he asked, more than a little confused."You heard me! Better think it over carefully." She said before turning and making her way up to bed.A few minutes after, Mark too went to bed only to find himself tossing and turning til the small hours as his mind thought over and over his mother's comments.. Umph... uh, was sure that you... Umph!... weren't offended at all... UMPH!... Mark, I really don't want to wait any longer! Will you mount me now, in my rump? Please?"Mark shifted position, and the blunt pressure returned to her anus. His two hands had firm grips on her ass cheeks, separating and exposing her rear, and locking her hips into the submissive position. Anuhea was thrilled with the sensation. Mark bent down over her and kissed her ear. "Is this still okay?" Yes... This doesn't hurt. .. now..." She began to cry.I cradled her head in my arms and held her close to me, "But Margaret, you're still faithful to your husband, I don't count... you're still faithful Margaret, never fear."I don't know how long I was holding her, but she soon cried herself out and I bent my head to kiss her lips, to find that she was soon returning my kisses herself. "But this is so wrong of me." She said after some minutes."Why? We're girls together we can't harm each other or anyone else." I.