I haven't watched one in a couple of years....but I used to quite often...and I, too, am amazed to find out they have endings. Next time I'll TRY to pay more attention!

We use them to start off foreplay sometimes but always end up shutting it off. Trick is to get movies with only sex scenes and no lame stories and then you just start where you left off the next time. Eventually you will get to the end. :)

That's what our collection is all about...who wants to see porn stars act? They're getting paid to suck & fuck!
How do we know when the movie ends...the tape runs out & starts rewinding...

We tend to have sex during the porn. I have seen the end of plenty, because we tend to watch them a chunk at a time. So sometimes we'll start with the last scene and then end up back at the beginning. I'm not one to try to follow the storyline. :D

I'm going to guess that the money shot usually ends the story. A lot of videos tend to have several stories in a row so I guess I watch them in chunks like Lou (and FP, I assume? Ahaha, I'm funny).