She reached out and closed the laptop. "Well?" Actually, yeah. It turned me on a lot." I said blushing. I can't believe I said it. I just admitted to ...my little sister that she turned me on. "It's not like I haven't seen you before." I said. "You walk in here nearly every night, usually in skimpy clothing, to raid my porn. Not to mention all those times we had hot sex all over the house" I said trying to brush it off. "Wait. First time? I thought you were giving it up to Johnny tonight." I said.. She says " oh come on. It's not that bad is it" she start riding me with a slow to medium tempo while talking extremely dirty. Stuff like "your dick is gonna stink like my butthole for weeks" and "some girl is gonna go down on you and stop because she smells how stinky your dick is from drilling into my butthole". Runny poop start trickling down the sides of my thighs and off the sides of the chair. She finally pulls her butt off my dick and I think its finally all over, but to my horror she. He could feel his cock hardening again. He waited until she came back into the living room from the kitchen and strode to meet her. Her face was still cum splattered and he knew she would take it again. He unbuttoned her blouse, unclipped her bra, and pulled both breasts free. He fondled them, raising the nipples so they were as hard as his cock. Gently he pushed her down on her knees.“Take my trousers off.” She did.“And my shorts.” She did, entranced by the erect cock gently swaying just. "She went and when I looked in ten minutes later, she was snoring like her life depended on it.I dozed for a while myself, then went out the back and washed the old banger. When I got back upstairs I looked in again, the snoring had stopped, but she still hadn't moved, the bed sheet had though. It had slid down over her back and stopped just short of displaying the swellings of her buttocks.Feeling slightly guilty, I pulled it back up over her shoulders and kissed her head tenderly before.