If Mari had a free hand, she would be biting her thumb right now, trying to stifle an intake of breath that's just a bit louder than she had intended it to be. It wasn't as though Dia was being particularly rough, but the pinch was enough to make her spine start tingling, like a shockwave was just sent all the way from the tip of her nipple down to her quivering legs.

Alright. If Dia wants to play like this, she'll just have to up the intensity a bit. She went straight for the nipple before with her mouth, when she got carried away, but now it's like she's actively avoiding going straight for the tips during her massage; she's still gentle, making sure to pace herself, but she's giving plenty of attention to her breasts themselves, rubbing them in tight circular motions but making sure to steer her palms clear of the most sensitive part.

Of course she's teasing, even at a time like this. It's Mari.