A continuation of what's shown on THIS drawing. It's time to go to bed after a bath and Tails feels that there is some kind of problem. Natasha doesn't really see it. The bed is large enough to two of them.
Tails: "Umm...well since I have two tails, I also have two...you know. So since you have seven tails, does that mean you have seven..? Because I don't want to disappoint you if my two things won't be enough for you."
Heh heh.
Tails: "Umm...well since I have two tails, I also have two...you know. So since you have seven tails