Questionable Questing

Robbin has it so she does manipulation but it makes sense. With Mark and Nolan, exploring viltrumite values for why bimbofication to them is a optimal result and how the girls take advantage of it to enhance their powers.

With the emotional core of it being that both characters love earth and the relatively normal life they life on it, but are forced to reject in favor of a much more brutal and hard life. With Nolan being forced to embrace his former Viltrum instinct's in order to protect his friends and his son from the Empire, and Mark embracing it as he realizes he isn't fully satisfied or happy with just a normal life.

I think the secret to smut here is having Vultrunites be like primal beasts when it comes to battle and sex. Extremely carnal physical beings and that lifestyle or hard-core domineering physicality attracts their respective harems.

Make Viltrumites alien. Then build serious story on top.

I'm really liking the idea that they've taken their genetic engineering so far in trying to remove their humanity and making the perfect warriors that they have this almost second sense they can't turn off that tells them exactly how to kill every single person in the room.

And tie that into a extremely predatory lust

Just overwhelming need for control and dominance that's only just barely repressed with incredibly strict military training and literal decades of indoctrination for even the youngest recruits.

Except Mark never got that.
As for the girls, what if bimbofication was presented as ascension? A transnuman beauty and glorification of both form and powers enhanced by viltrumite science

With Mark in particular having it real bad since he's half human, and thus unlike the other Viltrum's didn't inherit their innate stoicism and severely repressed emotions. Being human ironically makes him more likely to turn into a conqueror since he more emotional.

With Bimbofication, the reason a lot of the girls go for it is that not only do they want to be strong and beautiful, but because it also increases their age which especially for Mark since he dates a lot of Milf's is something they are very aware of.

And Debbie, what draws her into incest? Her having a taste of bimbofication and wanting both the more enhanced power and the psychological sensations with Mark?
We should design bimbofication in story role as not a sex slave maker though that is fun, but as a transhuman process of making useful seconds to Viltrum empire

You want to be as extremely deep fetish as possible while keeping a core superhero story

Debbie, I'm in a weird spot with. On one hand I love the queen role she plays in Mark's harem, but on the other hand that would totally ruin her relationship with Nolan and I think the two of them are pretty cute together.

And her obsession with Bimbofication is about her deep routed fears that her children and Nolan are going to discover the stars and how to fly and never come back down to earth where the boring nobody named Debbie is.

Obvious solution is Nolan teaching Mark it's pretty normal for a viltrumite father to share need deep meaning viltrumite term for beloved pet with their son and or daughter.

Viltrum is weird. Too much bio engineering

Make viltrumites extremely horny animals.

It's a irony. All that military discipline because the creation of a alpha warrior race fucked up their hormones and emotional states

Not just horny, but they have a very utilitarian view of relationships, especially since they are practically going extinct, meaning any fertile woman are quickly shared by everyone in rotation to try and rebuild their population as fast as possible.

Which would make Nolan and Mark explode.

I got it. Genetically, Nolan and Mark don't have a incest tabbo in their bodies

It shows how effected Nolan is by earth that stuff he used to think as normal, he now looks back in disgust.

While Mark is really close to his mom and for a Viltrumite's natural protective and possessive desires that grows weird quick

Got some ice cream that's s'more flavored and really good. But yeah Viltrum need to protect and dominate mix to get some weird results.