I've had several first dates that were setup to last for about 4 or 5 hours, to get to the exact moment of a first date kiss. The "necessary tension and pressure" was part of the whole plan. This was mostly online dating...Let me explain.

Have to start with emails, text, or phone. I was building the connection so that we were familiar with each other. Then on the first date when we met, we would talk and have dinner for about two hours. I would be amazingly charming and she would be incredibly interested in what I was saying. I would still spend a lot of time listening to what she was talking about, trying to relate with all her stories. After we had some drinks in us, I would often suggest a walk around the area. It was usually night and I had my favorite areas to take women: nice lighting, not too out of the way, quite. This is when the physical contact begins to start. I would approach her but not touch, I'd move away and draw her towards me, she would move and I'd go to her. All this while walking along and stopping occasionally to admire the views. Eventually, a light touch on the arm or small of her back. Then some gazing into each other's eyes. Eventually, we'd begin to hold hands then as we looked into each other's eyes, the first light peck on the lips. Then progresses to the first full kiss. Her body pressed to mine hugging, kissing, breathing..., "what do you want to do, now?" I would ask, and she would smile, knowingly. I already knew what was going to happen, it was the entire point of the encounter and she had fallen prey to my dance of seduction.

That would usually take about 4 or 5 hours, depending on what we did and how many places we went on the date. We'd end up at my apartment and fuck like animals for between 0.1 to 3 hours or so.

Alternately, you can just try and get her drunk and get this all over with in about 3 hours.

tl:dr I joked about first date sex.