The statements of a and b were not mine, they were yours.
I assume they were meant to show how Joe could testify (after Fina used the term sexual in nature prior to Joe testifying) that McQueary told him of activity that was sexual in nature when in fact McQueary never told him of any activity that would be so described.
I only posted that we have reached the point that some people, including you, think a and b are equivalent to Scott's explanation.
If you can't see how bizarre that is; that's fine.
As for your even more bizarre point relating to the phrase "I don't know what you would call it" let me ask you this. If you were told by someone you knew that they observed a man and a woman, naked as jaybirds, rolling around inverted on a bed with hands all over each other, could you then later relate that you were told the happy couple was doing something of a sexual nature, although you wouldn't know what you'd call it?
That should tell you something.