Handling Employee Expenses

[Luke <..hidden..>]

I am trying to figure out the best way to book the following 
expense scenario...

Company A needs a piece of inventory.

An employee buys that inventory personally from company B.

Customer pays company A.

I want company B to be a vendor of company A, because in future 
transactions, it is likely that purchases will be direct.

So I can create a vendor entry for company B.

However, how do I move money around within accounts, to pay the employee 
instead of the vendor itself?
Or some how indicate that company A is paying company b via the employee?

Thanks

Luke