You wonder what Sara is going to have you do later.

You wonder what Sara might have you do to assist for a bit... and then your thoughts inevitably turn dirty. In your mind, Sara is standing before you in that cute blue smock. Your mouths are together as you both caress and fondle each other until you turn her around, bend her over and drag the fabric up over her ass to reveal her sopping wet lotus flower...

A knock at the door brings you out of your reverie.

You open your door and there is a sudden blur of motion as you are knocked back onto the bed and the door is quickly shut behind your assailant. A thin sweatshirt has been tossed to cover your face. It's followed by a tank top and you toss both articles of clothing aside to see Alex stepping gingerly out of the shorts she's wearing. She wasn't just wearing a bathing suit top, she's got the bottom on as well. You take a moment to admire her. She is positively gorgeous. Her lithe body is easily the slimmest and most sporty amongst the three sisters. Her chest is the smallest as well, but that doesn't mean less than in any category other than size. You would nibble on her apples every day of the week and take seconds whenever you could. The lycra of her two piece is iridescent and fits her form perfectly. It almost looks painted on.

Suddenly, the air is knocked out of you as you discover you have a hundred and five pounds of spunky young woman sitting on your abdomen. She leans down and gives you a not so chaste kiss. Her tongue probes your mouth and you decide to let it spar with your own. They roll around each other for a bit as Alex lets out a soft barely audible moan.

"Hi there," Alex says after breaking the kiss.

"Hey little one," you reply.

Alex frowns at the nickname. "I hate that name you call me... it always makes me feel like you think I'm still an immature child."

"No... I didn't mean it like that... It's just..."

"Yeah... yeah... I'm the smallest..."

"You know... there are many ways that isn't a bad thing..."

"Oh yeah? Like what mister?"

"Well... I'm not sure I should tell you..." a gremlin crawls out of your mind as you add, "it's grown ups stuff."

She punches you in the chest playfully, "Ah! Asshole!"

She leans down for another kiss. "I'm not a child anymore..."

"No... you are indeed not..." your body is making you painfully aware of that fact as your cock rapidly becomes erect and starts to strain for release from it's prison in your pants.

Alex wiggles a bit backwards down your body so that she is more straddling your hips and she lets out a gasp as her butt and vulva drag across the hardened steel bar your groin becomes when you are aroused. "Oh... I can see that you believe that now." She seems a bit less hyper as she realizes this means you are at least attracted to her.

You stare at each others eyes for a bit, like deer in headlights. Alex says, " I feel a bit like a dog who finally caught the car it was chasing... a bit unsure of what to do now."

"What would you like to do?"

"Well... I'd like for your pants and my swimsuit to evaporate and you to see just how small I am..." she brings her hands up to cover her mouth and gasps as she realizes that she said that out loud, "I mean... I'd like to..."

You let out a hearty chuckle, "Alex... it's okay... you're a grown woman. A beautiful one at that. We can talk honestly about anything..."

She looks a bit sheepish, "Well... I'm still new to this... I wasn't sure if you'd see me as a woman... and well I mean... I've never done anything like this with anybody so..."

"Oh... wow... you're a virgin?"

She nods slowly. Her eyes suddenly look huge and innocent to you. The meaning of this encounter became so much more important. If you were to be her first time, you wanted to make sure that she enjoyed it... and that things didn't go faster than she was comfortable.

"Alex..." you say. Her hand moves to cover your mouth and keep you from saying anything else for a bit.

"Hold on... I... took a long time to get the courage to come in here like this. I had originally planned to wait until the rehearsal dinner and see if I could get sis to seat us together... but she has you next to her and James at the wedding. It's weird..."

"Well... I there are some things I could tell you... but I would have to get your sisters permission."

"I knew there was something hinkey going on... she's been acting really strange this last week or so. I thought she was just getting some kind of nervous jitters about the wedding... she and James haven't been together alone for the last two weeks. But she's got you here to work her kinks out doesn't she... Sis isn't even married yet and she's already planning to be your mistress? No wait... is that even the right word? Oh well... it doesn't matter... you're here to fuck her aren't you..."

You debate for a moment whether to own up to this. Honesty is the best policy... at least when it comes to talking to women you hope to get into the pants of. So you nod. "Yes... Sara and I are going to have sex some time during the wedding."

"Oh my god..." her hands cover her mouth again. "She's not taking her birth control anymore..."

You nod again.

"Her cycle has always been like a clock... and this is... whoa... is she trying to cuck James?"

After a pause, you nod again.

"Holy shit... are we living out a hentai?"

You chuckle again, "No nothing like that. Or at least that's not my understanding of things."

Alex gets a confused look on her face, "Like what then?"

"I'm not sure how much I should say... Can you just trust me that there are reasons for what's happening?"

"I guess..." she pouts for a minute... but then realization dawns on her face, "buuuuuuut... maybe you could do something for me... to convince me to keep quiet..."

You let out an feigned and overly exaggerated sigh, "Oh? What might that be?"

"Would you be my first time? Sis always raved about you... and I'm sure you know I've been crushing on you since I was... way too young for you..."

"Alright... I'm game. I've definitely grown an interest for you..."

She laughs as she realizes what you're talking about and then grinds herself down against your obviously showing interest.

"Well then mister..." her hands move to undo your belt.

Your hands start to caress her thighs. She's gotten your belt open and pulls it out of your pants. It gets tossed to the floor with the other clothes. Alex moves to work the button and zip. Your hands move up her thighs to her hips, your fingers teasing at the loose knots of her swimsuit bottom tugging them open and allowing the garment to fall limp away from her. She's gotten the button undone and the zipper down, she lifts off of you so that she can drag your pants off, her bottom going along with your pants to the floor. Her hands grip your boxers and pull them off freeing your cock which bounces out.

Alex is entranced at your pulsing rod. She gingerly reaches for it. Her fingers tentatively touch the skin of your shaft. She smiles. "Wow... it's so firm... it feels kind of like the toy sis helped me pick out... but warm..." she gets a sheepish look as she realizes what she admitted and then gasps as she realizes something else, "that sneaky bitch... she picked out a toy that's just like this... Oh..."

You smile at her and pull her close in for a kiss. Her mouth opens as you gently probe with your tongue. She moans into your mouth as you release her from the kiss and pull her body closer to you. Your hands go to her hips as she pushes you back down onto the bed.

"She got me something to prepare me for this... she wanted us to have sex..."

"That's possible..." you admit as you caress her hips.

Her vulva are slick with her arousal and a bit of moisture is dragged across your legs as she gets closer to mounting your hips. The lips of her sex reach your scrotum and the base of your cock. Some of her love juice starts to coat your member as she anticipates taking you inside for the first time. "Well... here goes..." she raises up on her knees and inches forward. Your cock stabbing into the sky beneath her eager snatch. A bit of fluid drools out onto the glans and then slowly flows over it and down one side to coat your shaft. She lowers herself agonizingly slowly as time seems to slow to almost a standstill. Until suddenly you feel the lips of her sex brush against the tip of your dick and after what seems like an eternity, finally begin to part to allow you deeper inside.

Deeper, ever deeper you go into the slim young woman. Her juices lubricating your cocks ascent towards her cervix and womb. Finally, after an age of pleasure, you are fully engulfed. She comes to rest atop you. Your dick poking the fleshy end of her cunt and the final gate to her baby chamber.

Alex's breathing stops for almost a full minute. Her body begins to shake like a leaf as a wave of pleasure overtakes her. A warm gush of fluid coats your groin as she releases girl cum with her orgasm.

"You feel amazing," you say, "very tight..."

Your words seem to bring her back to reality, "Oh... wow... I've never came like that from just being entered. It was nice..."

"Yes... it was..."

Alex starts to lift herself and then lowers herself again almost as quickly. She does this over and over again, until she settles into a steady bounce. "You feel so good inside of me..."

"I concur..." your hands move up her sides to her chest. You push the top out of the way so you can get at her firm apple sized breasts and give each one a loving massage.

"I don't know how much longer I can keep this up before I cum again..." her eyes close as she enjoys her ride.

"I don't know how long you can keep this up before I cum inside of you..."

Her eyes snap open at that. "Oh... um... Oh god... I know I shouldn't let you do that on our first time... but... oh gawd... it feels so nice to have you in me... I don't want to stop..."

"You do feel amazing Alex... but are you... taking birth control?"

She shakes her head no, but continues to ride your cock. If anything, you feel as if she might have sped up by half a bounce when you asked her that.

"Are you... okay with me cumming inside of you?"

She nods her head. Now she definitely is riding you faster.

"Are you sure? Is this a safe time?"

She nods at your first question... and shakes her head at the second... her eyes lock onto yours... they take on an almost mad gleam as she rides you faster.

"You're riding me... about to take a load of my sperm... and it's a risky time?" your hands return down the sides of her body to her hips. You are helping her to bounce on your dick. Each time she bottoms out, you thrust your hips up a bit causing the head of your cock to push against her cervix.

"Oh gawd yes... I feel like such a slut... but yes... I want you to cum inside me... I want to feel you dripping out of me... I want your baby... I've always wanted your baby... since I can remember... Oh please... oh shit... I feel something... it's like you're getting bigger inside me..."

"I am... going to cum soon... are you sure?"

"I've never been more certain of anything in my life..." she says wildly as she bounces on you. "Fuck me... fuck a baby into me... give me your sperm... make me pregnant!!!"

You feel your scrotum get tight. There is a familiar tingle in your balls as they pull up against your body.

"Take it!" you growl through grit teeth. You feel the first surge of liquid shooting up your shaft. Your hands grip her hips and you hold her as tightly as you can. She does her part and pushes herself against you as much as she can as well. Alex's face looks beatific as she finally gets what she really wanted from you. The first spurt splatters inside of her, and she bites her index finger to keep from screaming as she feels your seed fill up her tiny little cunt. Spurt after glorious spurt of your spend rushes out of you and into your lover. Your seed keeps coming until the space inside of her fills up and when it becomes too much to contain, begins to ooze out around her labia and over your groin.

The little soldiers you've sent on the attack begin their swim inside of her womb. Their mission, to find and destroy the exterior wall of her egg so that one of them might slip inside and make a new life for themselves.

She collapses onto you. Both of you are breathing heavily. You embrace each other and cuddle for awhile until you fall asleep...