My sister's real name is Laura, but I've been calling her B. J. which stands for Big Jerk for almost as long as I can remember. It's all in fun because Laura is not a jerk, and I love her dearly. It's just something that evolved out of us growing up together with her four years my senior.
She is twenty-two now which makes me, ready or not, eligible to vote and screw up just like an adult if I so desire. I don't feel any different than I did a month ago, but everyone is insisting that I am now a man. Big deal.
The really big deal in our house is that B. J. is pregnant - six months pregnant and showing big time. All of our lives she has felt responsible for me, and has done her best to take care of me. Now I voluntarily feel obligated to take care of her while she has that other person inside of her body. I made good grades in biology so I know how she got into this condition. I also know a little about having babies, but my curiosity just won't let me keep my mouth shut.
For example, we are having one of our frequent brother/sister conferences right now.
"Adam," she said with a mild huff, "you make me self-conscience when you stare at me that way."
"What way?" I asked innocently knowing full-well exactly what she meant.
"You know. You take spells when you openly stare at my belly."
"Well," I said quite honestly, "I've seen your naked body before around the house, but that was when you had a beautiful body. The biggest humps you had ten were your tits, and they made my peter hard every time I saw them."
"Really?" B. J. said interrupting me. "Why haven't you told me this before?"
"I never found the courage or the right time, I guess. Anyway, now I can't imagine what you look like naked in your present condition." I'm sure my face was red from blushing, but B. J. and I have always been very candid with each other.
"All you have to do is ask, little brother," she said in a soft and pleasant voice. "Do you want to see my belly?"
"If you don't mind," I said nervously.
"I don't see why not? After all, you are the kid's uncle you know." With more than usual effort, she raised herself from the sofa and stood before me. "Remember, you asked for it," she said smiling broadly. She unbuttoned her maternity blouse and let it drop to the floor. She was wearing a special bra because her tits were huge. I could also see the top of the bulge the baby was causing. She must have read my mind.
"I'll drop the skirt, if you'll drop your pants." She probably thought I would refuse, and give her a way out of this predicament. Her eyes widen and her jaw dropped when she saw me stand to my feet, loosen my belt, and drop my pants to the floor.
"Like this?" I asked. My jockey briefs were no match for the erection I had developed upon seeing my sister's enormous breasts.
"My, my Adam," she said approvingly, "you're all grown up, big guy." Her eyes were fixed on my hard on as she deftly unfastened her skirt, wiggled it over her hump, and let it fall to the floor.
"Does it hurt much?" I asked with true concern.
"It's heavy, but I can't say that it hurts yet,' she said while she cupped her hands under the bulge to ease the burden. "Feel my belly, Adam. It's time to meet your nephew." Neither of us made mention of the almost ridiculously tiny patch of fabric covering her crotch. It was held in place by a narrow cord that circled her lower body beneath the bulge.
I reached out and tenderly touched her enlarged mid-section with the tips of my fingers. B. J. saw my hesitation. She smiled broadly, covered my hand with one of hers, and guided it all over her swollen belly. My erection was struggling with my shorts, and although B. J. had not admitted it out loud, my touch was giving her all sorts of warm and electrifying sensations.
B. J. carefully removed the hand that was covering mine, but I continued to rub her big belly. With her hands free now, she reached up and unclasped the hook between her two enormous melons. The bra recoiled quickly now that it was free, and her breasts gracefully sagged a little. My sister has the biggest breasts I have ever seen.
"Caress my boobies, little brother," she whispered amid sighs and panting. "They are in dire need of someone's attention other than mine."
"My pleasure," I said hoarsely. I was turned on enough now that I went beyond caressing. I took her boobs one at a time into both hands, and suckled the protruding hard nipples. She whimpered; then she sighed; and then she placed a hand on either side of my head.
"Oh, shit, Adam," she cried. "That feels great." I already knew that.
All too soon as far as I was concerned, she disconnected me from her breasts, and in a hoarse whisper, "Lose those Jockeys and I'll fix that stiffy for you." I did as she asked, and she immediately slipped her mouth over the swollen head of my aching joint. Oh God, that felt good. Maybe too good. She pumped me about half a dozen times, and my kettle began to boil. The next thing I knew the whistle was blowing, and my big sister was taking my milk like a starving calf.
I'm going to blame my short term stamina on the circumstances surrounding this situation. This wasn't my first blow job, but it was definitely the first oral sex I had ever received from my sister. That alone should have made me explode on contact.
I helped B. J. to her feet, and the proximity of our nearly nude bodies made it compelling that we embrace. I couldn't count the number of times I had kissed my big sister in the past, but this encounter was way different. Out lips were parted, our tongues were doing a jitterbug, her huge tits were spread all over my chest, and I realized that my hand was under her panties with a finger at the doorway to her vagina.