"Good Neighbor" by Jean-Marc Conier.
http://x10.dejanews.com/getdoc.xp?AN=341492790

As is the custom in many families, our narrator's wife has tied him up and gotten him turned on, and then has left him there (still tied up) with a lesbian video to watch while she runs some errands. Well, the neighbor, who has the key to the house, comes upon him - or I guess he cums upon her this time. She's upset because her boyfriend has stood her up, even after she has gone to great trouble to look really great for him. Even though he's all tied up at the moment, our narrator takes pity and rises to the occasion. She exploits her captive audience to the fullest.

This story is not based on deep thought. It's just cute and sexy.