It's been just over a week since... well, you're up with the play if you read the first part.
Mom was looking very pleased with herself the next morning, so it looked like her evening out with Dad didn't end with just dinner! Both of them had the day off that day, so Mom and Em made up a packed lunch for the four of us and we went to the beach. It was really great - the first time we had been together as a family like that in a very long time. Randy Pete, now not quite the Mr Average Geek, spent a great deal of the day lying on his belly to hide his huge boner. The said boner being caused by a combination of vivid mental flashbacks to the night before, plus the sight of his sister's skimpily clad, curvy body laid out so invitingly before him in a very tiny bikini. He also got quite pissed off a couple of times, because when Em wanted someone to rub sunblock on her back and the backs of her legs, she asked Mom to do it. At least she didn't ask Dad.
The next week saw Mom on day shift and Dad on afternoons, which meant that at least one of them was always around the house, so I had no real opportunity to get Em by herself and talk to her about what had taken place between us. In any case, my sister seemed disinclined to be alone with me and was unresponsive when I spoke to her. She only used the computer when I was not in my room and when I did find her in there she left almost immediately. Also, she was always dressed "properly" in jeans and sweat-top or sweater, and always seemed to be wearing a bra. I couldn't figure Em's behaviour out. Was she trying to dampen my interest in her? Was she having second thoughts over what we did? Even if she was rapt at the time, was she now feeling guilty? Maybe she'd talked it over with someone, a counsellor at school or a girlfriend perhaps, and reached the conclusion that I was "bad"? Let's face it, masturbating while lying beside your brother and then jacking him off is generally frowned on in "normal" circles. And when anything happens like that is always "the male's fault"!
Meanwhile, in true geek fashion, I carried on churning the whole episode over in my mind, simultaneously fretting about things going any further and praying fervently that I would feel my sister's soft warm hand on my throbbing tool again soon. But, I also figured that the best course of action for the moment was to sit back and play it cool. After all, it would be stupid of me to rush in and do or say something that might spook Em for good.
On the last day of her day shift cycle afternoons shift nurse aide called in sick and Mom was asked to work a double duty. Overtime was scarce and the extra money was welcome, so Mom accepted immediately. But, as luck would have it, Cute Sister was going out on a date! Alone in the house and almost beside himself with frustration The Geek reverted to type and surfed The Net for a while. There are no prizes for guessing where he ended up. And there are also no prizes for knowing that this was the worst possible thing he could have done, because in no time at all he found some really cool stories about brothers and sisters getting it on and grew a hard-on that felt as big as a house.
The Geek became so engrossed in reading about a guy who was giving it to his cute sister in the ass, while their father was busily screwing his other sister on the bed beside them, that he lost all sense of space and time. His next move was averagely predictable: unzip chinos and do something about aching stiff cock with fist! The story was so hot he didn't notice his own Cute Sister slip into the room behind him, and only knew she was there when she clapped her hands over his eyes and whispered, "Booo!" in his ear.
I jumped a mile and smiled guiltily, knowing that my face was rapidly turning a hot beetroot red.
"Peter!" she breathed, "couldn't you wait for me?"
"Em! W-what are you doing here? I... I thought you were out on a date?" I stammered in shock and embarrassment at being caught out jacking off yet again.
"I was, but I couldn't bear the thought of you being here all on your own. So, I told Greg I had a headache and asked him to bring me home. But, by the look of things you don't need me!"
Greg! Now that was a name I'd not heard mentioned before. He doesn't go to our school. Greg must be Em's new stud; and he must be an extra pissed off one by now I would think!
Em spun the chair around so that I was facing her. She had changed out of her street clothes and was barefoot and wearing my favourite uniform - the sweat-top part anyway. I mumbled something incoherent about it being nice to see her. It was when she sat down on me with her legs astride mine I saw that Em was wearing my other fetish-like essential, the white cotton panties. My stomach lurched in a kind of barrel roll. Meanwhile, my hand, still clasping my rampant tool, was just inches from her crotch. If I were a Cool Guy I would simply push her panties to one side and slide my dick into her snatch... but I was only a geek.
She leaned forward and kissed me on the cheek. In the process, Em's panties pressed briefly against the head of my cock leaving a smear of pre-cum on their chaste whiteness. She murmured, "Hey, I'm sorry if I've seemed unfriendly this week. I've been doing a lot of thinking about the other night and trying to sort out my true feelings. We didn't do anything really bad, did we?"
I shook my head dumbly, utterly entranced by the lovely sight before me.
"Pete! You are staring!"
"I can't help it," I gurgled; my eyes fixed on the strip of material guarding her sexual secrets. "You are so fantastic!"
"And so are you," Em murmured, removing my hand so that she could get a good look at my throbbing erection, "Err...Pete, can we go and lie down?"
My heart started pounding like a sledgehammer in my chest. Wordlessly - there was no way I could use my voice or I would have produced one of my infamous squeaks - I gestured to Em to get to her feet. Then I got up from the chair and led her to my bed.
"Pete, do you mind if we turn off the light?" she asked.
I did what she wanted, but the glow from the computer screen still lit the room. "That'll go off soon," she breathed, wriggling closer to me and throwing one thigh across mine. I felt her hand slide down my belly, undoing my belt and waistband and slipping inside, seeking my penis. "You can touch me now, you know."
