Thunderthighs enjoys herself immensely during this session. She sat her fat ass on Koki's face relaxing her bulky bum on her. Koki was surprised that Thunderthighs would not let her breath and struggles to let herself out from under the weight just to capture a whiff of air to the point she was falling off the bench. Thunderthighs grinds hard on her face and bounces her ass heavily and enjoys the sound of the weak helpless sub squirming underneath her weight. Koki surrenders and asks for a break but she is given no chance till her Mistress says she's done.