The Delacour sisters and their affairs

[Laurent]

Main characters for this challenge are as follows: Harry Potter, Ron Weasley, Fleur and Gabrielle Delacour.

All four of them should be married, but who their spouses are shouldn't really matter. Fleur and Gabrielle would be married to some OC French wizards, whereas Harry and Ron could be married to anyone, ranging from canon pairings to whomever you please, but I admit that canon pairings would probably suit them best here.

This should be set years and years after Hogwarts, with Harry and Ron in their 30s, so that Gabrielle would be well of age.

The affairs would be Fleur with Harry and Gabrielle with Ron. Both affairs should be initiated by Fleur and Gabrielle, with Harry and Ron unwilling, possibly even dosed with potions for the first few times to kickstart the whole thing and then later on blackmailed to keep it going. Their motivation for the affairs should be very simple: they want what they want and they'll do anything to get it, which in this case are Harry Potter and Ron Weasley.

What I want to see:

1. Harry and Ron being unwilling to cheat on their wives, but still going along with it, first due to being dosed with potions and later due to blackmail;

2. They never talk poorly of their wives or disparage them, though Fleur and Gabrielle might, but they could still get aroused by the dirty talk, i.e. a guilty pleasure;

3. Despite the above, they will still enjoy, once they're no longer being drugged, having relations with the Delacour witches;

4. Fleur and Gabrielle using any opportunity to have relations with Harry and Ron, regardless whether in public or private;

5. Fleur and Gabrielle completely dominating their husbands, not hiding what they're doing from them, but making them keep their mouths shut. If they have sex with their husbands, Fleur and her sister force them to do very demeaning tasks, like have a go at them after Harry and Ron are done with them;

6. Both Fleur and Gabrielle should be aggressive with Harry and Ron, and possessive when they're somewhere together, regardless if their spouses are with them or not;

7. Sex in public places (under a spell/spells to prevent them from being found out), sex in risky locations where they might be caught by their wives and so on;

8. Experimentation with magical sex toys and sex spells of any sorts - feel free to go wild here, so long as it's within the realm of plausibility somewhat: Harry or Ron transfiguring their genitals (or their whole bodies) to that of some animal and then having sex with Fleur or Gabrielle; changing of ages, whether to make Gabrielle older and Ron younger, or Fleur younger and Harry older, or any other possible combination; chastity spells that prevent Harry or Ron from having sex with their wives, spells of lust to make them tether on the edge of insanity due to pent up arousal while in public with the Delacour sisters; and so on. Really, anything goes so long as it's not too far out there.

What I don't want to see:

1. There is to be no cheating from Harry's or Ron's wife and they are not to be blamed for the affairs their husbands are having;

2. The affairs are to remain secret from everyone except for a few friends of Fleur and Gabrielle and their husbands;

3. No scat, snuff, gay or lesbian sexual acts

4. No Veela soul-bond/mate nonsense. What's happening here is pure obsession and lust on Fleur's and Gabrielle's parts and nothing more.

5. No small dicks men or premature ejaculations, not even for Fleur and Gabrielle's husbands, it's a tiresome cliche that has no place in HP smut;

6. No unrealistic sized cocks for Harry and Ron, it's as tiresome to read about 15 inch cocks (seriously, do you even know how big that is?) as it is about the small ones; for clarification's sake, their endowments shouldn't exceed nine inches in length and whatever is appropriate for girth.

Feel free to model Fleur Delacour in accordance to the actress that played her in the Harry Potter films, with Gabrielle being a more voluptuous version of that with some other notable differences to differentiate between the two.

Last, but not least, if you feel like it, include a bonus scene at the end where both Fleur and Gabrielle have decided to get pregnant with their lovers, then later on another scene of them having sex while visibly pregnant, and eventually even a scene where you have Harry and Ron meet their children somewhere in public, while others believe the children to be the products of Fleur and Gabrielle's marriages, when in truth they're the result of the extensive and long-term affairs that never ended. This kind of thing would be best if Harry and Ron were to have no children with their wives and only with their French lovers.

[Guest Curious]

Wait, so are they supposed to be unwilling the whole fic? Or just in the beginning, when they're being drugged and coerced with blackmail?

I ask because it's not really any fun to write characters who are unwilling participants in the sex acts.

Would it be possible to work in some angle of hatefucks, so to speak? Like, both Harry and Ron would hate Fleur and Gabrielle for what they're doing, but enjoying the act of fucking around on their wives while they're doing it, but afterwards they could feel sort of remorseful? Or would it be more self-loathing, and secret enjoyment, that they wouldn't admit to each other, that they're being 'forced' into cheating on their wives?

[Laurent]

Yeah, my bad, I should have been clearer on that.

Sure, later on in their affairs Harry and Ron can start to fully enjoy themselves and look forward to meeting Fleur and Gabrielle.

The unwillingness was only supposed to cover the starting stuff, with the potions and whatever blackmail Fleur and her sister used to force them to continue the affair.