Two ladies of a particular persuasion, living together.
One lady tells the other lady that she is going into hospital, for something to improve their relationship.
The other lady asks what this procedure is going to be. Is it going to be a tonsillectomy?
No, was the reply.
Is it going to be an appendectomy?
No, was the reply.
OK, then what is it?
A strapadicktome.