The stretch is sudden and perfect. I grip the table edge, pretending to listen to Richard’s story about his latest investment.

Marcus pumps slowly, curling his finger against my front wall while his thumb grinds my clit. My juices coat his hand. I can hear the faint wet sounds if I listen closely, and the fear of getting caught makes everything ten times more intense.

If they catch us… Richard will divorce me. I’ll lose everything. But fuck — why does that make me wetter?

He adds a second finger, stretching me wider. My walls flutter around him greedily. I’m so close already, shame and pleasure twisting together in my...