Surprise of my older sister when she found out that we are alone at home

Even now, I still can’t believe that when I was alone with my very hot sister, she stripped completely naked and laid down on the stairs to touch her massive pussy. With a proposal like that, how could I say no, even if it was my sister, her pussy got me really hard and without thinking, I ate all her pussy because even though it was the first time I saw it, I needed to lick it with my tongue. Then, up in the bedroom, she mounted me to penetrate her hard through her rich, wet pussy. When she gave me a blowjob after what was already told, I couldn’t resist and came in her small mouth.