Oh, I'm reminded to ask... are either of these allowed? I would want to avoid any bad material, but if they are, I might have to glance over them to see if there is anything I might want to grab for fun.
Zaer mentioned them, but didn't actually say they were allowed. I gleaned that he might allow a few things on a case by case basis. If you like anything just ask yourself if something in D&D already does it better (if yes than there is no need to bother with it) and if the rules for it are concise and well integrated. If it is, feel free to ask. The worse he can do is say no.
As I said the GUCK has two "Kiss Spell" metamagic feats one is really cool and well done so I'll be asking Zaer if I can use it. Delivering spells by kiss is a desirable cornerstone of erotic D&D really. The other Kiss metamagic feat uses a mechanic that has appeared in no official book but is constantly showing up in the lowest quality 3rd party and homebrew ideas. I'd be better off trying to create a custom feat from scratch than asking Zaer if I can use that one.
Unrelated: I was listening to music this morning and ran across a song (In German) that I really like and realized how epic a flavor text it makes for my Dvati Cohort. The song is about an Incubus and its cool that the singer dubbed his voice in twice. At first it just sounds like he's saying the same stuff with each dub and just created a duet like effect. But when you really listen to it you notice the second voice is slightly changing the words. The main voice is singing something akin to a very romantic love song and the second voice singing along changing the words slightly to reflect the Incubus's diabolical true feelings. A lose translation made a really cool flavortext for a manipulative evil Dvati:
I want to color the world with red rose petals for you, I want to color the world red with your blood,
And to walk with you alone in the garden before the summer flowers die, And to die with you alone,
We're walking and I take you by the hand. I look after you in your sleep, We're walking and I take you in your sleep,
And I bring my heart as a Sacrifice for you. To protect you from sorrow, And I bring you, a sacrifice, away from all sorrow,
You are so amazingly beautiful I can't bear it when you cry, You are so amazingly beautiful when you cry,
And never will any power upon this earth be as strong as this love, And Never will it be love,
Sway, sawy In the dance. Come let us teach you,
Fly, fly, believe! For the morning is far off,
Dawn~! When light menaces the night,
Because you are alone when dreaming,
I can be with you and fly away before the dawn