Here are a few reasons:
#1 - She likes it.
The rest, in no particular order:
It feels good
The view from the back is lovely
Change of routine
Never understood the expression "it hurts so good", seems like an oxymoron to me.
Here are a few reasons:
#1 - She likes it.
The rest, in no particular order:
It feels good
The view from the back is lovely
Change of routine
I dunno. There's nothing I won't do to pleasure a woman, so if I didn't like it (big "IF", because I love it) I'd still do it to give pleasure.