Do you have any idea what you have done Riki? You've dragged a Tanagura Blondie down to a low-level human.
Okay, I'll admit that Iason and Riki have one of the most fucked up relationships ever. Iason is in love with Riki. Riki knows this but he never actually says anything or acts on it. And in a way, they have a dependent relationship because at the end of the first OVA, Guy beats up Riki and tells him he never wants to see him again. THus completely severing Riki's relationships in Ceres.
Why does Iason/Riki appeal to me? I mean, it's obviously one-sided most of the time and Iason is sweet as he is deadly. I suppose it's because Iason's love is consuming.. Iason is willing to give up everything, destroy the whole world, kill off every single member of the human race just to be with Riki. Yes, Iason would go that far. Heck, Iason defied Jupiter, the ultimate authority of Tanagura. Doing that would mean losing his own mind (quote Raoul I'll be the one who'll have to tamper with your mind")
"No matter what anyone says, no matter who you are thinking, remember, you are MY Pet"
Guy. Riki's pairing partner
So what? They're all messed up. Obviously Iason/Riki can't work. After all, it isn't consensual. Again, this is why you really need to watch it and see. It is consensual to a large degree in the second half of the anime. Riki doesn't talk to Iason in anger or hatred.
Example
Riki: Iason, is it true you're in a bad position because of me?
Iason: Who told you that?
Riki: You heard rumours everywhere. As it is, I'm supposed to be the rare animal on the market.
Iason laughs.
Riki: It's no laughing matter!
Iason: So, you're worried about me?
Riki: ...That's not it. I'm just a little concerned if I get sent back to Eos.
Iason: If you have time to worry about that, then you should improve your skills.
I realized my wording in the previous entry on Iason's treatment of Riki was a little harsh. Iason did not break Riki, that we can tell by the flashbacks. It wasn't quite taming either, but it quite clearly the breaking of a person.
....I need a new obsession. Utena Tenjou is hot in the movie like woah. XD