You call your big sister into your bedroom so you can expose yourself to her again. She shouts at you, saying how she's had enough of you being so perverted around her. You don't care, you just want her to take her bra off so you can stroke your dick to her big tits. You have a thing for older women and your sister is your ultimate fantasy! She says no, but you are very persuasive. She calls you possessive and doesn't want you doing this to her anymore, but agrees to touch your cock and talk dirty for you if it'll get you off her back tonight. She holds it and squeezes it and repeats the sexual things you ask her to say... but you know she doesn't mean it, so you start to fuck her. You know when you've got your dick inside of her she can't help but turn into this vulgar whore, begging for your hot cumload to fill her up... She fucking loves it really!!