Jo was standing in my open doorway, leaning casually against the jamb. She raised her hands and started to clap. The noise startled Katie who bolted upright.
"That was absolutely both the last thing I ever expected to see and the hottest." Jo said as she came in and sat in my chair. "So what happened? Did Patty dump you?"
Katie sighed. "No, well we had a big fight and I dumped her."
"And Mikey was here to pick up the pieces..."
"No! It wasn't like that. Well, sort of. We've been talking all evening and finally I asked him to fuck me. I really, really needed it."
"Must've been one hell of a conversation..." Jo said smiling.
Katie grinned, "Yeah it was." and she reached out and patted my leg. "Thanks Mikey, that was great. You're gonna be a great lover..."
"Gonna be?" Jo asked. "He looked pretty damn good to me. How long have you guys been fucking?"
I looked at the clock on my computer, eight twenty six. "A little less than an hour."
"Fuck! No way!"
"Hey what are you doing home so early?" Katie asked.
"Oh it was ridiculous. The boss got handsy and suggested we go in the office for some one on one counselling. I quit. Actually I stood on the floor in my zone and yelled that if he ever groped me again I would sue the place, then stormed out."
"Wow..." I muttered.
We sat there in silence for a minute before Jo spoke again.
"So let me ask you both a couple of questions. Are you going to fuck often?"
"I hope so." I said.
"Yeah, I hope so too..."said Katie.
"Good, good. Okay then, if you're going to fuck some more, can I watch?"
"What?" We both said.
"Well it was so damn hot! I mean brother fucks sister... Shit, incest stories are my favorite erotica. I never dreamed it might happen in my own home. I'd love to watch you guys while I masturbate!"
"I can't believe this..." I mumbled.
"Me neither." said Katie. "I dunno... I mean, yeah it's weird but kinda erotic too. But..."
"Well there's another question you need to think about." Jo added. "How are you guys going to keep this from Mom?"
Katie and I looked at each other.
"My silence and cooperation could be bought... or I could become a co-conspirator and accomplice..."
"Wait..." Katie said, "You want to fuck him too?"
"Actually I want to fuck both of you."
Katie's jaw hung open and my brain froze.
"Okay I know what you're going to say. I'm too young. Hell you and Mom both lost your virginity younger than me. And although I've not had a cock, I have had a pelvic so I have no hymen. I have made out with a couple of girls before and liked it, but we didn't get very far. And that pelvic? It was about a month ago and it was to insert my IUD, so I'm safe. And lastly, this: I would rather keep sex in the family, nice and safe than with some guy I don't know as well. So what do you say?"
Katie looked at me. "Well? You know I want her. How about you? Do you want to fuck your little sister?"
"You're damn right I do!"
Jo grinned. "It's a deal!"
Jo stood up smiling. She was wearing typical waiter attire, black shirt, slacks and shoes. She kicked off her shoes and then dropped her pants and kicked them off and aside.
"I am never wearing this shirt again!" she said and ripped it open. Buttons flew everywhere. She flung it down and her sports bra followed. As I looked her over my cock began to swell.
Jo was slim and very fit.I watched as she removed her panties and then stood with her hands on her hips. Her breasts were so incredibly erect with no sag at all, but what surprised me was her huge puffy areola and erect nipples. Each nipple was pierced by a silver barbell. Her navel was pierced by a curved ring and her pussy was completely bare.
"What?" she asked.
"Oh nothing, just surprised at how much you've grown up, and how sexy you look." I stood up and took her in my arms and kissed her. Soon Katie was there with us, wrapping her arms around us both. We traded kisses all around. The sight of my two sisters kissing was so erotic that my cock was rigid in no time.
"God Katie, do you know how many nights I've dreamed of kissing you, of feeling your mouth on my pussy?' Jo asked.
"Damn, and I just told Mikey that I wished I could teach you..."
"I want you to, I really do. But first I want to watch Mikey fuck your pussy."
"We can do both." Katie said and went over and lay on my bed. "Come fuck me Mikey."