The third plan. Merlina is wonderful

OF COURSE! This solves everything right? There will be no one else who is let in on your secret, you won't have to raise someone else's baby, you'll get to have sex. Hell, this wasn't mentioned, but this also denies Lydia her leverage for having picked out your bride! Why didn't you do this sooner! You reach out to Merlina and pull her into a hug, feeling her soft body press against your firm chest. She lets out an adorable 'oomph' of surprise, but slowly, almost nervously returns the hug, blushing fiercely.

"Does... does this mean what I think it means...?" she asks, hesitant to believe her own senses. You laugh, a deep, warm rumble that soothes her tension. She hugs you tighter as you confirm, yes. You'd be happy to do this with her. She pushes off your broad chest, and turns to look up to you, her eyes shimmer slightly with unshed tears of joy. With a breath she follows up, trying to make sure the two of you stick to the plan, instead of devolving into romantic cliches... much to her own ****. The two of you should make sure you are not deserved...and considering your positions, that should take little effort. Merlina has ample reason to meet with you for several hours, under conditions of utmost secrecy.

You smooth your top, and step outside. A short conversation with the guards that you are not to be disturbed, and to not let anyone intrude. As you speak, Merlina sets up several enchantments, eager to ensure this goes off without a hitch. No sound will breach the walls, and no magical eyes can peer through. There are no spells that can shut out mundane observers, but considering the room you chose to meet is several floors up, that is little concern. Lastly, she does one final spell... one less for your security, and more for your safety. The moment you come back in, she seals the door with a magical lock. Not only will this prevent a nosy guard from peeking in, the magic extends to make the entire door as secure as the wall it's connected to. No one is getting in... or out. Not that you'd want to, right?

Of course not! You approach her, as she finishes her incantations, and her eyes turn to you, a dopey smile on her face which she's had since childhood. You return it, before flashing her a smile she hasn't seen before... You may have a cock the size of her pinky, while she studied her tomes, you studied manuals on seduction. It's one thing for the King of Olaria to be under equipped, but to be under prepared? Truly unthinkable. As you flash her your best seductive look, her smile fades to a look of surprised lust. For just a moment, you are no longer her childhood friend that she used to play in shrubs with, you're the Sexiest Man in the world... as far as she knows at least. While there had always been an emotional connection, she'd have to lie to say she never noticed your jaw line, or your smile. Your teeth, your hair, your eyes... her own eyes lid as if brought under some sort of spell, and she gives a bashful giggle... She didn't know what to expect, and beyond her initial proposition, it seems she doesn't quite know how these things go... So she relaxes, and leaves it up to you.