Ume grunted as Tsubaki suddenly slammed into her with enough force to nearly break the floorboards. The catgirl was glad that she was as tough as she was, not even able to catch her breath now with how much force and speed that Tsubaki was slamming into her. And then the doggirl bit into her breast, sharp pain shooting through her chest. Ume saw bright spots in her eyes from the sudden sharp pain, both her chest and her cunt tightening from the pain. She was sure that mark would stay for at least a week, but didn't exactly have the time to contemplate it.<br/><br/>"What.... is that... all?" Ume saidas her right breast bounced freely in time with the thrusts, the boards of her house threatening to snap with each. There was an old saying, "curiosity killed the cat", and Ume tempted to see if that was true. She could feel herself coming so close again to an orgasm... but wanted to see just what Tsubaki would do when taunted.