leaving beautiful red, clear marks

Description: Description nata doesn't seem to be suffering much as she bites her hand deep and long, leaving beautiful red, clear marks. boldly (but with the silent knowledge that the odds are slim) nata challenges herself to a competition: if i can withstand more bites, i win and maybe want an orgasm of my choice! masturbation as a reward. after all, nata has forbidden herself this pleasure. she needs to win. sharp teeth and powerful pressure are hard to withstand.