Gail Shepherd groaned at the image looking back at her from the bathroom mirror. Two obvious wet spots announced that her large lactating breasts needed pumping again. The recent birth of her baby son had initiated a process that was beginning to annoy her.

The baby was fine. He had been adopted by a loving, childless couple in a prearranged process that had been in the works ever since she had learned she was knocked up by her deadbeat boyfriend. At eighteen, she didn't need the responsibility of motherhood, and her son would be adored and loved by way of adoption. The process had been complicated, but all parties had been thoroughly vetted and Gail was convinced she had done the right thing. But regardless, she was left with the consequences of that pregnancy–namely two milky breasts that were large to begin with. Now that they were full of milk, they were huge...and tender.

Gail had briefly experienced the joy of nursing an infant after the delivery of her son, but within a couple of days, the baby was in his new arms, and his cute little lips were replaced by a breast pump. Even with constant use of that implement, her breasts remained swollen and tender.

She opened her robe, exposing her bra, and examined herself. Her nipples jutted prominently even through the soft fabric of the undergarment. Her overflowing bra cups each had a circle of milk in their centers. She lifted each breast out of the bra and examined them. Supported by the bra now underneath them, they jutted from her chest like two Titan missiles. Her nipples were larger than the breasts of some of her friends.

During her last two years of high school, her bras had gone through several size increases. At seventeen, she was a 36C cup, but by the end of the year, on her eighteenth birthday, she had grown into a 38D bra. At five-foot-seven, she was of average height and weight, but her chest was out of proportion to the rest of her. The joke was that her tits came around a corner several seconds before the rest of her.

Needless to say, she was popular with the boys in her class until she became pregnant. She ended up graduating through correspondence for her last semester of school.

But now that she had given birth, her boobs were even bigger...and heavy. Not to mention painful at times.

She tweaked a nipple, and several large droplets formed at the end of that large bud. Her areolae were dollar-sized and bumpy: two puffy, pink circles. The actual nipples, the nubs, were long and thumb-sized. The only way she was able to hide them was by applying Band-Aids to them, which she refused to do.

Consequently, both male and female heads turned whenever she was out in public. Her two headlights demanded attention.

She had initially pumped them and given the milk to the adoptive parents, but they had moved back to another city far from Gail, and her sweet nectar was now going to waste. The bottles she filled with milk from her breast pump were emptied down the drain. Such a waste!

Naturally, Gail had tasted her own milk and found it to be delicious and sweeter than the stuff that came in a carton at the grocery store. She was new to this, and she wondered how long she would produce milk if she were not nursing. She loved the sensation of suction on her nipples, and for the brief time that her baby had nursed her, it was wonderful. The experience of a baby nursing her milk-laden breasts was soothing. She experienced being a mother briefly and knew that someday she would have a baby of her own.

Before she and her boyfriend had broken up, she let him play freely with her tits. He loved to suckle them, and when she realized she was pregnant and began producing milk, she even encouraged him. Despite his enjoyment, the prospect of fatherhood prompted him to disappear from her life.

Her figure gradually returned to normal size, but her breasts remained swollen and large. Her stepbrother had even commented on them one day when she was fishing for anything resembling a compliment. Her self-image was at a low ebb. She needed some relief for both her breasts and her ego.

She put them back into the cups of her bra and tightened her robe. She left the bathroom and almost knocked her stepbrother over as he was coming out of his bedroom. She grabbed him by the arm and stopped him.

"Jimmy, I have a question for you. Do I look like a cow to you?"

"Huh? What? No! Of course not."

He stared at the two wet spots on his stepsister's robe where her tits beckoned his eyes. They stayed glued on her chest for several seconds. After all, she had invited him to look, hadn't she?

"Oh! No, you don't look like a cow, Gail, but you do have a humungous set of hooters, especially now. Not that there's anything wrong with that. I like big boobs...and yours especially."

Jimmy was used to his sister's ups and downs since her pregnancy. A little compliment went a long way with her.

"Yeah, they're huge now, I know. I bet you'd like to feel them, wouldn't you? Maybe we can work out a deal."

Jimmy did a double take. Did he hear her correctly?

"What? You want me to feel your tits? Is this a trick?"

Jimmy and Gail were approximately the same age. Their parents had married when they were sixteen, and gradually they had become close, but it took a while. Jimmy was a couple of months older, but he seemed more mature than most eighteen-year-olds to Gail. He was handsome and tall, if a bit gangly. He had dated a neighbor girlfriend of Gail's for a short period of time, but tended to be shy around girls and women. Gail had developed a crush on him when their parents first married, but it felt wrong to her since he was her stepbrother. Instead, she dated a jerk and ended up pregnant.

"Yes, I mean it. They are so swollen, and they love to be fondled. Nobody wants to date me now that I've had a baby."

"So, you just want me to start feeling your boobs right here? What if Mom saw us?"

"No, stupid. I want you to come to my room. And besides, Mom and Dad are gone. Really, what I want is someone to suck on them. They are so sore. You are always staring at them, so here's your chance. No one will know. I know this sounds weird, but you'd be doing me a big favor."

Jimmy's mind was reeling, and so was his groin. He was getting a huge erection at the thought of seeing his stepsister's boobs.

"Um, sure, I guess. If that's what you want. Now?"

"Yes, now. As you can see, they are leaking. So you are going to get some of my milk. Does that freak you out? It's not like it's poison. It tastes good. But you'll see."

She led the way to her bedroom and closed the door after her brother entered the room.

"How do we do this? Not standing up, I hope."

"No. How about if I get on the bed and you lie on my lap. But let me take my bra off first."

Jimmy watched as Gail untied her robe and laid it on the bed. She was wearing only a pair of cotton pajama bottoms and her bra. She reached behind her and unclasped the bra and then shrugged it off. And suddenly there they were. Jimmy's eyes feasted on two beautiful, engorged tits, each one capped by those huge nipples pointing slightly upward in their attempt to defy gravity. His jaw dropped at the sight of them. They were better than he had dreamed.

She climbed onto the queen-sized bed and arranged a pillow behind her, so she was sitting up.

"Go ahead and lie on your back with your head on my lap on this pillow. That way I can feed you my tits. You need to do both of them for balance. You can feel them first if you want. I love to have them touched, especially now."

Jimmy reached over tentatively and lightly ran his fingers over each breast. The skin was so smooth and soft, yet firm. He hefted each one to check their weight. But her nipples were something else. He touched each one and lightly pinched it between his thumb and finger. Gail smiled blissfully.

"My nipples are huge, aren't they? Watch this."

Gail grabbed a thumb-sized bud of one breast and stretched it away from her chest, distending it and then letting it drop with a plop back to her chest.

"Go ahead and try it. Look how my nipples stretch. They have always been big, but now they cover the whole end of my tits." She let Jimmy fondle her chest for a few minutes before patting the bed and directing him to lie on her lap.

When he was situated, she cradled his head in her arms and let a breast dangle in front of his face.

"So what do you think, Bro. Are they the way you pictured them?" Gail smiled at the tent in her brother's sweatpants. His erection was not going away.

"Your breasts are wonderful, Gail. God, I can't believe I'm doing this. What do you want me to do?"

"Go ahead and suck on them. You might have to suck hard until the milk starts flowing, but then just do what comes natural. Be sure to pay attention to both of them."

Jimmy raised his head and placed his lips around a thick nipple. The sensation was incredible. He flicked Gail's rubbery nub with his tongue and gently sucked. At first, nothing happened, but then a droplet found his mouth, and he began sucking more firmly. He reached up and squeezed his fingers around the torpedo end of her breast and gently milked it as he began sucking with more force. Soon, a stream of nectar was squirting into his mouth and giving him a real taste. He thought he was going to pass out from the pleasure as his stepsister encouraged him and gently stroked his forehead and face.

"Oh, yes, Bro. Just like that. God, I needed this. Careful! Not too much teeth action. Feel how my big nipples stretch when you suck hard. I love that. And I can tell: so do you."

She reached down and squeezed the tubular outline of his cock briefly–a sisterly squeeze. He nearly jumped at her touch.

"That's okay if it gets you excited that way, Jimmy. I'm so grateful to get some relief. If you have to relieve yourself as well, I don't mind. Okay, enough on that one. Do the other one."

Jimmy released her nipple as milk ran out of the corners of his mouth. He quickly found the other bud and repeated the process. His hand had automatically gone to his crotch to rearrange his package that was now jammed up in his underwear.

"Here, let me help. Lift your butt for a sec."

Gail reached down and slid his sweats and underwear to his thighs as Jimmy raised his ass to help, exposing his cock and balls. His cock stood at full mast. She smiled as she realized he had a nice-sized penis, and it was rock hard.

"Want me to give you a handjob? You have a nice dick, Jimmy. It's bigger than I thought. And circumcised. My shithead boyfriend was uncut. I like yours better."

Jimmy looked up to see his sister wrap her fingers around his cock and slowly stroke it. Gail pressed his head into her breast with the hand cradling his head while she continued with her hand job. It didn't take long. Within a minute or two Jimmy grunted and jerked as a thick stream of cum appeared at his piss hole and ran down his cock onto her hand.

"Wow! That was fast! Geez, Jimmy. You needed this as much as I did."

Gail ran her fingers up and down his shaft in an effort to collect most of the thick sperm that had just erupted from his cock. She scraped up what she could in her hand and grabbed a tissue to wipe it up. Her sheets were a mess. Jimmy removed the tit from his mouth and moaned.

"Sorry. I couldn't help myself. This is unbelievable. I didn't mean to cum on your hand like that, but, honestly, Gail, this is beyond my wildest fantasies. First, you invite me to nurse your beautiful tits, and then you give me a handjob. Those are both firsts."

"No worries, Bro. We're basically adults now, and having given birth to a baby boy out of wedlock, I'm no saint. A handjob for my cute brother is the least I can do to repay you. But I need you to nurse a little longer, hmmm? My puppies are full. I'm not sure how long this will last, but I may need you again. You don't mind sucking on my big tits, do you? From the boner I just stroked, I'd say you are enjoying this kind of work."

"Geez, just seeing your boobs is a dream come true, Gail. I'll gladly help you out anytime."

With that thought, both teenagers smiled, and then Jimmy resumed his sucking and fondling of his sister's glorious boobs. Gail knew that if she simply stopped pumping her breasts, they would probably dry up in a couple of weeks, but with her brother's help, what was the hurry? Besides, she was pleasing him.

She looked down at his cock and noticed it was getting hard again. This could turn into a new adventure.