I'm sure it'd be a strange (awkward/uncomfortable) thing... especially for Sora... to have Roxas take over in that sort of situation. I mean, of course Roxas would need to have permission (and I don't see him ever doing that unless the other party was willing and aware). Unless he and Sora really weren't getting along, or something, then one could argue that he could do it without permission. I've heard a lot of other's takes on how it works, most of which have been "Sora goes into a sleep-like state when Roxas has control of the body". Where-as Roxas doesn't have to be in a sleep-like state when he's not in control... because... well, I guess because he just hangs around in the back of Sora's mind.

In one fic, Sora and Kairi would just zone out, and not be aware of anything that happened when the others were in control. All we really ever saw in that fic was Namine popping up and coming onto Riku and Sora... and, while interesting, Roxas never interacted with Kairi. (he wasn't into Riku 'that way'.) In another fic... Roxas didn't appear until he and Sora got into a big argument, brought on by some trauma... and he took over by force when Riku upset him. But in that case, he asked Kairi to bring Namine forward. Then Kairi and Sora weren't aware of anything.

I didn't want to say it straight out, being totally pervy, but yes... I would really like to see someone write this scenario with 'others and intimacy'. (although I think you have more than enough talent. <3) I've been looking for some Roxas/Kairi interaction (any interaction...there's none out there! You'd think he'd at least get to know her under the circumstances. ) and then this idea came about. It would be *really* interesting to see that sort of interaction with Roxas.