The Cursed Portrait

If you're lucky enough to have it, don't take your immortality for granted.
Being immortal, I'm sure you'd never imagine that a small sip from a mythical spring could be your undoing.
If you should find yourself in this circumstance, I'm sure you'd look for a way to save your hard-earned legacy. Perhaps with an heir, lovingly created with the perfect woman - the love of your life.
And if this perfect woman objects to your well-laid out plan, what lengths would you go to change her mind?
Any and all?
Bastian would.