A smirk came to the face of Riri. She was well aware how beginnings and endings worked. She aware of a great many things, for reasons which weren't yet ready to be explained. Still, it made her statements all the more pointed. "Of course I know~" she teased subtly. What she didn't know though, was how this particular leg of their dance would go. She wasn't sure what steps were being taken and who was leading, but what she was certain of, was the reactive nature of their host self. But before that, a little tease of Seigen seemed to result in something rather interesting. An appraisal of her cleverness followed by his own movements along with hers. She'd sandwiched his cock between her thighs and folds and rubbed him along, and felt his own oscillating stroke. Until of course he withdrew, only to realign and sink within her body with that fresh cock of his and that same serpentine motion. A moan left the mouth of Riri as her body reacted to his entrance, but that didn't save her from the observation.
Nor did said observations do anything but make Miko blush harder. Her darker self was torturing her and it was almost defying the laws of nature. She'd mentioned the wetness pooling between her legs and had it answered by Seigen. A hazarded glance towards that situation had her making a brief moment of eye contact with her light self and realizing something important. "We're in danger..." she moaned. "Of course you are, so wet and vulnerable, you're in my hands now. But you didn't answer me, Mi-tan♥~" Sinais spoke while continuing to rub between the legs of Miko and Miko continued to squirm unable to properly escape. "Aye♪~ I... want..." Miko was struggling as those snaking motions between her legs rubbed directly against the apex of her sex. She was writhing it was agony, but she'd also been mostly on the receiving end of oral and external stimulation, the truth was she definitely would have preferred an orgasm granted by a dick.
"Oh, I know which would would do the trick~" mentioned Sinais, "Ri-tan does too♥~" she mused happily. "But I want to hear it from Mi-tan," she commented as if there was a certain desire she maintained. This new dick might need to be broken in, but that didn't mean she wanted to do it all at once. The heat she was already experiencing just rubbing against the other lass, made her excited for the eventual plunge she just wanted her other self to properly share in the excitement. "Say it," she said while snaking her cock in between her legs. "Like you really want it," she said mentioned in a teasing fashion... "And I'll do it~" she finished up and that rubbing was still happening outside but it'd slowed. She could feel the beginning quakes in Miko's loins. She'd had the last thousand years to learn how she orgasmed so... why not put it off to get what she wanted. And thus all eyes would be left on Miko as her heart jumped repeatedly in her chest. 'She's such a bully, but it's so fucking hot! It's okay right, I can tell myself how I wanna be fucked right. It's just being honest. I have to be honest with me right?' she was dying as this other rubbed against her sex but avoided even entering her hole. Riri looked back at Seigen giving him a playful wink as her hips began to move, figuring she'd speak again after her other self.