Hmm,
Well…this may take some work, I’ve never arranged a supernova before, but…
Actually, your soul technically is immortal already (unless eaten by a C.o.D. or similar) so the deal with Nick was for your body to be immortal.
Now if only there was someway to separate your soul from your body…I could then take your soul and your body would continue to live (may need some astral life support) :-” then your deal with Nick would be in place for another couple billion years and I’d have your soul in the meantime.
I’m thinking I’d be OK, to let you out of the contract after a billion years, so then you could go to Nick when the supernova goes off.
See, it’s called deal making/negotiating….
You see, we demons, Nick included, are very flexible in terms of working with contracts.
Tizzy