She lied and told him that she didn’t know when her big sister would be home, because she knew he wouldn’t bother fucking her ass if he knew he’d only have to wait a few minutes. She loved entertaining him while he waited to take her sister out on dates and his massive cock always made her ass ache in all the right ways for days. She knew he’d stop fucking her ass as soon as her sister got home, and pound his cock down her big sister’s throat instead, but at least she’d get a few minutes of his cock to herself first.