You've been helping your little sister work out, getting her body more tight and her ass bigger. She noticed you watching her, your cock twitching when she does her squats, well now she wants to thank you for training her. She shows you how strong her grip is with a tight handjob, you cant help but cum 3 times. then she rides your face whilst you eat her tight little pussy before showing you her ass, bouncing and pounding on you whilst you fuck, eventually blowing your load inside your sisters pussy.