Which is correct?
- I agree with the plan worked up between me and Larry.
- I agree with the plan worked up between Larry and I.
Which is correct?
Since "between" governs the phrase, the pronoun must be in the objective case; "between Larry and me" is correct.
Who worked up the plan? Larry and I did.
Who was the plan worked up between? It was worked up between Larry and me.
Larry and me is the correct choice.
The sentence feels awkward to me, I would probably say "Worked up by me and Larry"