Any plain lessers she produces will be het albino as well. The only ones you won't be sure of are pastels. You could get regular pastels from either pairing so they would be possible het albino - not sure what % to add if you're factoring in possible sperm retention..
I guess if you get a double sired clutch(confirmed if you pop out stuff with black pastel and spider) the pastels would be 50% possible het albino. If all babies have pastel in them though I wouldn't even put a possible het stamp on any of them since I have no idea the odds of retaining sperm.
It's late and now my brain is hurting, don't blame me if I muffed it up somewhere.