Ume practically leaped from Tsubaki's lap as the thumb entered her virgin ass, just as she was coming close to cumming too. Ume rolled over on the cushions and sat up, wiggling her butt from the feeling of the sudden intrusion. "That... would be going too far." Ume said, panting a bit. So close, damnit! "Look, the fingering is fine, but the butt's a no-go. Nnng, damnit. Was so close too."