Step-sister Surprise

Henry fumbled for the key. Why had he told his father and stepmother that he’d keep an eye on their house while they were away? After a long day at work, the last thing he wanted to do was drive half an hour out of his way to check in on plants and a spoiled cat.

Besides, there was no reason his stepsister couldn’t take care of things. Five years younger than Henry, Kirstin was eighteen, more than old enough to take care of the house she still lived in. “She isn’t home much,” Henry’s father had explained when he’d made the house-sitting request. “Between her college classes and her job, she’s almost never around. Some nights she doesn’t even come home.”

Surely his father wasn’t na? enough to think Kirstin was staying out all night because of work and classes. But Henry figured it wasn’t his place to break the news that sweet, innocent Kirstin was probably out partying. Or fucking.

Henry finally found the right key and opened the door. All the lights in the house were off. All except one. At the far end of the hallway, the family room light was on. Kirstin must have forgotten to turn it off. “Damn kid,” Henry muttered.

He headed down the hall. As he got closer to the family room, he heard noises. More specifically, sex noises. “She wouldn’t,” he thought.

At the doorway of the room, Henry paused. Should he grab whatever kid Kirstin was with and shove him against a wall, or just tell him to get the fuck out? Grabbing could be a problem he thought; it might get him accused of assault. So yelling it would be. Henry looked into the room.



His eyes opened wide as he saw his little stepsister naked on the couch, gasping and moaning as she fucked herself with a large pink dildo.

Henry’s cock immediately stood at attention. Kirstin was gorgeous; he’d noticed that before, but her body… God, no wonder she was out all night sometimes. As though on its own, Henry’s hand rubbed his cock through his pants.

Fortunately, Kirstin’s eyes were closed. “Fuck, yes!” she groaned. “Oh, my god, fuck me!”

Henry went closer, careful not to make any sound that might let Kirstin know he was there. Her breasts were possibly a B-cup, firm and round and with nice pink nipples pointing straight up, Henry estimated. Her pussy was smooth where I’m sure blonde hair had once surrounded her pussy. As Kirstin thrust the dildo in and out of her cunt, she tweaked her nipples. It was one of the sexiest things Henry had ever seen.

Kirstin’s hand was a blur as she rammed the stiff dildo in and out of her wet cunt. He couldn’t resist the temptation any longer. He undid his pants and grasped his large cock. As he watched his sexy stepsister nearing her climax, he stroked himself toward his own.

“What the fuck are you doing?”

Startled, Henry let go of himself. Kirstin’s eyes were open now; Henry had been paying so much attention to the dildo in her pussy that he hadn’t realized she’d seen him. “I could ask you the same question,” he said.

“I…” Kirstin laughed and looked at the dildo that still protruded from her. “Guess I can’t lie my way out of it. I was horny. Got a problem with it?”

“No, but I have the same problem.”

Henry went to her and took hold of the dildo.