I have so many questions on the nature of this design. And all of them are of the *ahem* smexy variety.
To start: Do both mouths, human face and spider head as transition part, function as mouths?
Do you fertilize her eggs internally or do we go with the external egg sac system?
Will she eat me after she's done with me or will I be something like a pet frog to her? (See burrowing spiders keeping frogs as pest control in their dens for mor info)