Gifting of beneficiary's proceeds

[dar43081]

OHIO

Assume a husband/wife with 2 children, girl and boy, both adults. Wife dies leaving equal shares of a $100,000 life insurance policy to the children. (The policy has a $20,000 loan, making the net payout $40,000 to each child). One child lives overseas and does not pay US tax. The other lives in the US.
The child living outside the US maintains a US checking account for periodic deposits for the parents' use. This child's share of the insurance has been received and has been deposited. The US child has a SecureLine checking account established by the insurance company and has a book of checks with which she can access her share of the proceeds.

The question: If the US child decides to write a check for the full amount of her share made payable to her sibling, what tax consequence, if any, to the receiving child? It is understood there is no tax liability on the initial disbursements to each child, the only question is wheither one sibling's transfer of her share to the other sibling invokes any tax consequence for the receiver. Thanks very much!