All Comments on 'A Belated Birthday Celebration'

You've got the base there for a very good story, but it feels a but rushed. If you let things develop a bit more rather than leaping to the organs it could be great.

A couple of things to edit - lay or laid, not lied on the bed. Also from doggy style it should not be possible (unless you have a very strange anatomical design), for your balls to slap against her perineum!