[ Rather bluntly, Riou responds with his personal experience that no one asked for: ]

Jyuto's proven to me that Iris can withstand great physical exertion when the moon is out. [ At least he assumes that Jyuto had never taken anyone before him. And as Samatoki knows orally, Riou not holding back is an Experience. ] Even Itaru may be capable of withstanding being mated by a Sanguis like you during the triple moon with our increased pain tolerance and regeneration.

[ You know, just in case Samatoki wanted to fuck Itaru?? Is this the kind of defense you wanted, Itaru... Riou finishes cleaning up with Samatoki's help while they're talking about this. Please enjoy unpacking all of what he just said, you two. Riou is kneeling down to pet his dogs now as if he didn't just say a whole lot of loaded information. ]