One time she woke up while I was doing it and turned on the light. There I was, completely naked, with a big erection pointing straight at her. I was ...aught. "What are you doing?" she asked. What was I doing? I was naked and sexually aroused in my sisters room. "I am looking for a book, I think I left it in here!!" My sister just stared at the my now pulsating cock. She really could not take her eyes from it. I felt slightly exposed(haha) so I found a small towel on the radiator and draped it. Deal after deal, discount after discount, on toilet paper and toothbrush heads. I lay wondering to myself, “Who buys toilet paper for Christmas?”At 22 years old I had recently moved out. I lived in a small 3 bed new build on an estate that popped up from nowhere. I wanted the space and independence and splashed out as soon as I could to get on to the housing ladder. Memories of moans from my parents echo in my ears, “When are you moving out Ellie?... How much have you saved?... You’re old. "Okay," she said, "follow me." She squeezed from the front seat into the back of the minivan. I followed her (it wasn't easy—I should have used the doors to get out and back in). She got on the backseat on all fours, that luscious ass of hers in the air, "Go ahead. Fuck me." I was practically busting out of my pants. Her jeans were already unbuttoned and unzipped. I took hold of the waist and worked them down over her curves taking her panties down with them. "See my pussy?" she called over her. , my.., ass!” she said in between her breathing. After my cock stiffened even more, I let go.“OHHHH…, FFUUCCCKKKK!!!!!” I grunted out as thrust after thrust of my cum spewed out into her now gaping asshole. After a minute or si, I quickly pulled out & collapsed on my back next to Darla. After I came back around after my third orgasm of the night, I lifted my head up and saw my cum just dripping out of her asshole.“Was that the best ass pounding you’ve ever gotten?” “That was fuckin’.