Senpai, you're quite the little pervert, aren't you? ❤Succubi can pretty much tell when others are aroused ♪That only happens during lewd play ♪O-O-O... Of course n-...You thought it was something weird like it coming from between my butt, didn't you?...Senpai.O... Ooh, okay!
Th... That's just what I expected!You can think of it as a continuation of the spine!It actually comes out from around the tailbone above the butt!