Apologise, while putting my hand on her leg

I placed my hand on Gina's thigh and turned to her. "I'm sorry Gina, I went too far."
She looked at me before repeating herself "No, it's honestly okay. You did just surprise me, that's all."
"Really?" I asked, not convinced.
Gina placed her hand back on my crotch, "Yes, it's okay, see?"
I couldn't help but smile before she withdrew her hand so she could continue eating. "Okay then."

We finished our lunch, mostly in silence, not knowing what to say after the somewhat awkward interlude, and began to make our way back to the office. As we were in the lift heading back to our floor, I made a decision to take a risk.

"Hey, Gina, are you busy tonight?"
"No, I don't have any plans yet," she replied turning her head and smiling at me.
"Good. I need you to help me with some work after hours, if that's okay."
The thought of fucking her in my office was having the expected effect and my cock was swelling in my pants.
"Oh, that's no problem at all," Gina began as the doors opened, "I'll come in to your office when I've finished up for the day, okay?"

"Great," I replied as we walked up to her desk, "see you later then."
"Yep, see ya later," she replied as she sat down and I walked away.

The afternoon kind of dragged on, my thoughts flitting between my wife and our intimate conversation, and Gina, and what I was about to do. I frequently found myself watching the time slowly tick by on the clock on the wall until eventually five pm rolled around.

I was already extremely aroused by the thought of fucking Gina but as the minutes continued to tick by I began to worry that she wasn't going to come. I stood up and opened my door and looked out to see if I could see Gina , but it appeared she'd disappeared. Damn, I guess she forgot.
I shutdown my PC and was just about to get up when I heard the doors to the toilets shut and then a few seconds later Gina walked in to my office. She was looking even better than she was during the day, having let her hair down, and touched up her makeup.

"Hey, so, what did you need me for?" she asked smiling at me brightly.
"Uh, well..." what am I doing? She's actually up for it. Am I going to actually go through with this?