Once when I was a teenager, my girlfriend and I were trying to find a lover's lane. 

We would often sneak over to one another's house when our parents were away and release our built up sexual energy in all sorts of ways, but it had been a while since either of our parents had given us that opportunity.  So, it had become a regular event that we would go for a drive and find ways to pleasure each other.  She would give me blowjobs while I drove slowly on back roads, and I would finger her tight little pussy while she soaked the front seat of my car. 

This of course made it very difficult to drive.  On one particular occasion we decided to find a place to park, so we could both concentrate on exploring each other's bodies instead of driving.  After what seemed like forever, we pulled into the parking lot of a small country church.  The location was perfect because the parking lot was located deep behind the church and there were two entrances, so we could make a swift getaway if needed.