Countless

It would literally be impossible to add up all the hours that I've spent working out with this lady and her best friends.  Countless hours. 

And it never gets old. I can watch SATC 24 hours straight (not all while working out, though) I love those girls and I'm totally their fifth wheel. 

So, name this episode. 

 

Hint:  This is also the episode with the worst scene ever for people (me) named J.J.  Ugh.