Interesting! Fanon tends to make Benben taller by at least a head. I have no objections to this diversion (I like Yatsuhashi better), I'll just need to keep it in mind.
> Which Tsukumo has the larger chest (naturally, given what's about to happen)?
> Walk over to Yatsuhashi and hold out our hand.
> "Okay, Yatsuhashi, take my hand and I'll do the rest for you."
> If Yatsuhashi takes our hand, flow our life energy into her to fuse with her, noting the resulting changes to her body.