Twin sisters whose erogenous zones are linked...Only in Hentai.
On another note I really can't wait for the next chapter when he gets with the other sister.
There been case where the other twin can tell the other's mood, pain and death... doesn't seem too unlikely they can't feel the dong inside the other. But i will know after the experiment.
Anyone else felt bad when they realized Naho was the one causing problems for Nao? Like, it's a bit of a dick move to cause wet dreams and body turn-ons to your twin when you are just randomly masturbating on a Sunday morning. What if she was eating dinner? Doing laundry? In the middle of walking to school, an orgasm comes at her outta nowhere like Randy Ortiz.
Well, that's what happens when you provoke a guy that far.
Still, twins sharing the same sensation and pleasure...I've definitely seen it done before in other releases, but it's an interesting concept with potential so I'd like to see more of this, definitely.
On another note I really can't wait for the next chapter when he gets with the other sister.