Additionally to what has been said already with the fact that your friend probably has a very limited knowledge regarding breeding I would also recommend you not to trust someone that does not have solid quarantine practices, you just don't send animals on a loan and have them paired without quarantine whatsoever.
Rushing into breeding not allowing proper quarantine practices can be disastrous.
Finally if down the road you chose to do a loan with someone make sure you have everything in writing, including everything from the pairing being done, to how the clutch is divided without forgetting who would be responsible for vet care if required, or how the animal would be replaced should something happen.
