I agree with both winwizard and boadaddy. Something doesn't seem to smell right to me either. My concern is why is he so interested in YOUR snake in particular??

Now, don't get me wrong, Nagini is a gorgeous snake. But a low-expression jungle is not that hard to find and one isn't really all that expensive either. Please don't be offended! As I said, she IS lovely! But the genetics aren't that uncommon. This guy could find a proven jungle young adult female to breed his males to and then he'd own that female and all the resulting babies. Likewise, YOU can find a very nice male for Nagini within the next year or so.

To give you an example, I bought Peaches from a good breeder at a rept expo in May. She is a double gene animal - hypo dh ivory ghost - and she is a very very nice hypo. She is 9 months old now. I paid $200 for her. I am picking up a male for her this Saturday (incidentally from the same breeder). He is another hypo het ghost and is also an extremely nice, clean hypo and he has a genetic stripe which was proven out by the breeder with his sire. I paid $160 for this male. So for less than $400 I have 2 reeeaally nice hypos that together will produce hypos, super hypos, and ghosts all with a genetic stripe!

I know you said you trust this guy, and really, only you two can make this decision. But since you asked us here, I am thinking that you have some concerns and maybe you aren't feeling totally comfortable with this situation. If that's the case, my advice to you is WALK AWAY. To quote Robert Frost, "Good fences make good neighbors...." Just because you work with this guy doesn't mean you can't say no. Thank him for the compliment of wanting to breed his male to your snake, but leave it at that. If you're comfortable taking one further step, you might offer him one of Nagini's future offspring (from your own male) when she has them, perhaps at a slightly discounted price as a thank you for waiting. Just a thought!

Breeding arrangements with snakes can be FULL of inconsistancies, loopholes, and vagrancies. It can work, but it can be one major headache too. I don't know that you would find this particular situation worth it in light of how easy it would be to simply have your own male. You have plenty of time, and I garauntee that you'll be able to find the perfect boy for your perfect girl!