Sex and shame.

When they got upstairs, Beth went straight to the bathroom. She had done so as soon as she arrived home, but she wanted to make sure there wasn't any evidence, not even a smell, of what had happened at the office. When she was confident, she returned to the bedroom to find Brian waiting in his boxers, giving her a look.

"Sorry I had to do that event tonight." He strolled over and took her face in his hands, kissing her deeply. "Thanks for being patient..." He kissed her again. "I missed you."
Beth kissed him back, slipping arms around him, though inside, she was filled with queasy shame. Why did I do what I did? I'm sorry...

"I love you, Brian."
"I fucking love you too, baby." She was glad that he didn't detect the hollow nature of her words. She tried to lose herself in the sex, and Brian made an admirable, but ultimately typical effort. Shame, distraction and his lack of attention to detail meant that while sensual and tender, the sex was ultimately not very satisfying physically for her. She sucked him to completion after twenty minutes of average fucking, and swallowed his load, perhaps with a sense of atoning for something. She lay next to him, breathing hard, and forcing herself to smile.