The rest of the week was busy, and Kristin only had a little time in the mornings to masturbate while she replayed the events of the week in her mind. On Friday night, Mark came home a little early, and was in a pretty good mood. Apparently he was coming in on schedule and with no major problems on two projects, and so was feeling a lot relief. They joked and laughed, and had a little wine with dinner. Kristin was washing the dishes when Mark slipped up behind her, wrapping his arms around her and whispered in her ear "and how is my little slut's project going."
Kristin gasped. Her stomach filled with excited butterflies at the word "slut." She registered that the tone was flirty, even aroused, which was confirmed by what she could feel pressing against her ass. Her heart pounded as her mind raced with how to reply, but Mark began to pull away a little as she turned to face him.
She grabbed his arms before he could break the embrace, and his eyes dropped, as he began to mumble "Shit, I'm...I'm sorry...I didn't, you're not..." His voice was soft and low; hardly a whisper.
Kristin put a single finger on his lips. "Shhhhh, say it again."