Is mediocre sex still good sex?

Some say that even mediocre sex is  still good sex, but is this really true, especially for someone who has had a lot of good and bad sex?

We've all had to settle for a poor sexual performance by a partner at one time or another.  Sometimes it's related to anxiety, alcohol, drugs, or even stupidity. Whatever the reason, when sex goes bad, sometimes it's really, really bad—-the kind of bad that makes you wish you had stayed home to watch porn.

Sex is meant to be fun and exciting; not weird, awkward, or disappointing.  Recently we were out with a couple on a second date.  Our first encounter with them was hot and heavy and literally unforgettable.  We couldn't wait to top that night at the swingers club.  This time we met at their house. We walked into their dimly lit bedroom filled with