Your mom has told your big sister Jackie that your masturbation habits are out of control. You keep leaving jizz covered socks all over the house and she's had enough. Jackie scolds you for being such a weird little masturbater, but you can't help but to get hard staring at her cleavage as she does. She notices and flips out, you are so gross! Jackie things it will be funny to make you cum in front of her, so she takes out her big tits. You start jerking off to your sisters tits while she laughs & mocks you for being so pathetic. It's so wrong, you shouldn't be jerking off to your big sisters big tits