4.出産合宿での陣痛促進に向けたセックスの効果①【グループ旅行中に知るエッチな彼女の本性】

俺らは学生結婚をした。
いわゆるできちゃった結婚というやつで、大学四年の夏、就職先も決まっていない状況の中、本能のままにセックスをして予想外にも初めての中出し一発で的中した。
その後、俺は無事に内定をもらいインターンも始まった。
そして春。
既に結婚しており、六月には子どもが生まれる予定であることを伝えた上で就職した。

「あのね出産のことなんだけど…」
「なんだ？」
「あのね、この子が出来た旅行で行った場所覚えてる？」
「当然だろ、あいつのご両親の別荘だろ」
「それでね、久々に連絡とったらね、あの子たちも赤ちゃんできて六月に出産予定なんだって」
「そうなの？」

俺は早速連絡を取り、近々会う約束を取り付けた。
あの旅行の時、俺らの他にもう一組いたカップルだ。
夏休み明け以降、全然連絡が取れなくなり、俺らも新生活に向けてのバイトに就活に忙しくなり、それどころではなくなっていた。

「久しぶりじゃん」
「だな、仕事は？」
「まだまだ勉強中。でも働かなきゃなんないからな」
「子ども、産まれるらしいじゃん？」
「お前もな、うちと同じ六月って聞いたけど。もしかして…」

俺も同様に思っていたが、詳しく話を聞くと驚くことに出産予定日も数日の差であった。
ということは、やはりあの旅行中に出来たということだろう。

「あの旅行中で出来た子？」
「多分な。お前は？」
「うちはあの時の子で間違いない。実はあの時、別荘の外でもしたし、海の中でもしてた。俺の生セックスデビューで中出しデビューだったんだ」
「マジか、それでか……」

どうやら同じタイミングで出来てしまったようだ。
そして俺はとある提案を受けた。
どうやら相手の妻となった彼女は、例の別荘での出産を予定しているらしい。
そして一緒に出産しないかという誘いだった。

「予定日が近いって言っても、そんなに上手く同じ日になんかならないだろ」
「わかってるけど、その前後の日程で一緒にあの場所で暮らしてればいずれ陣痛は来るだろ。うちのが、お腹の子を授かったあの場所で出産したいって言ってるんだ。俺もその考えに賛同したわけで…同じ状況のお前らもどうかなって思ったんだ」
「なるほどね。一応帰って聞いてみるよ」
俺は帰宅後すぐに、その提案を伝えると、妻は喜んでその話に乗った。

別荘には助産師も滞在し、その費用については心配することはないと言ってくれていた。
そして約束の出産予定日○日前。
再び訪れることになった例の別荘に、さまざまな思い出が蘇る。
約一年前、この場でこれから誕生しようとしている我が子を授かった場所だ。

「久しぶり、みんな揃ったね」
「出産近そう？」
「陣痛とかお腹の張りとか、全然そんな気配ないの。そっちは？」
「私もよ…」

女性同士、そして出産を控えた妊婦同士、その顔を既に母親のようであった。
胸も大きくなり、うちの妻に関しては乳首を摘めば既に母乳が滴るほどだ。

「もう別荘の中に、簡易ベッドや出産に必要な諸々を運び込んである。寝室には俺らの荷物も移したし、食事は料理長さんも来てくれて世話してくれることになってる。だからあとは陣痛が来るのを待って過ごすだけだな」
「色々と悪いな。ありがたいよ」

それから三日間、どちらとも身体の具合は変わらず、助産師による検査も毎日続けられた。

「二人とも、まだまだ子宮口が固いですね。セックスしてもらうと、精液の成分で陣痛も近くなるんですけど、嫌でなけでおすすめですよ」
「なるほどね。じゃあ今夜はお互い夫婦で楽しむか」

そんな中、うちの妻が驚くような言葉を発した。

「ここで四人でエッチしない？もちろんするのはカップル同士だよ。普段他の夫婦がどんなセックスしてるかなんてわかんないじゃない」
「確かに新鮮でいいかもな。なかなか出来ないことだし。」
「でしょ？いいよね！」

ということで、その夜、俺と相手夫婦、そして助産師がリビングに集まると、早速行為を始めた。
助産師のリードにより、出産に向けての効果的な行為を誘導してくれるのだという。
まずは前戯。

「旦那さんは、奥さんの乳首に触れてあげましょう。まずは優しく…それから少しずつ摘んだりつねったりを繰り返して。そうです！奥さんたちは、自分で陰部刺激を始めても良いですよ」

その言葉にうちの妻は自らクリトリスの刺激をを始めると、声を荒げ出した。

「ひゃん！」
「もう、エロいなぁ」

俺は妻の陰部に指で触れた。
トロトロの愛液を絡め取り陰核を刺激すると、その刺激が妻をさらによがらせる。

「やんっ！だめぇええ！」

妊婦であり、全身が敏感になっている妻の絶頂は早く、既に身体をビクビクとさせてイッているようであった。
パンパンになった大きなお腹に触れるとそこは石のように固くなっており、こんな状態で大丈夫なのか不安になったが、助産師によるオーガズムに達すればそれは通常であるという。
そして先端から我慢汁が滴る俺のペニスの状態から、後背位で挿入するよう促された。

「ちょっと見られてると緊張するな」

そう言いながら妻に覆い被さり先端をヴァギナに当てがい、そのまま一気に根元まで挿入した。

「ひゃああああん！」

今まで聞いたことのないような大きな声を上げる妻の子宮口を突く度に、どんどん愛液が溢れ出す。
それを確認すると助産師は、騎乗位で結合したままの俺たち夫婦の陰部に手を伸ばし刺激し出した。
そしてそれに合わせるようにして俺も腰を突き上げる。
そんなプレイが数回繰り返されたところで、妻の様子がおかしくなる。

「っ！！だめぇぇええ！なんか出ちゃうぅぅう！！」
「えっ？ちょ、ちょっとま……」

俺の腰の動きは止めることができない。
そのまま俺は妻の中で果てるとほぼ同時に、彼女の中から透明の液体が噴き出した。
それは明らかに潮で、俺も妻もグッタリとしていた。
そして相手夫婦はというと……まだ準備が出来ていないようで、男側のちんこが勃たないらしい。

「奥さん、旦那さんへのフェラをしてみましょうか」

助産師に促されるまま、妻側が彼のモノを口に入れるとそれはすぐに膨張して見事に大きくなった。

「奥さんは、旦那さんの根元の袋を一緒に揉んであげましょう」
「うぁああぁ！たまんねぇ！」

その後友人夫婦も、俺らと同様に後背位になると無事にペニスを挿入し、早々に激しく腰を打ち付け始めた。
そんな姿を見ながらのセックスは、視覚と聴覚による生々しいオカズにより最高に気持ちよく、また陣痛を呼ぶためのセックスということでこれまでの数ヶ月とは違い、子どもを孕った体へ負担を気にすることなくピストンできることは最高の褒美だ。

「はぁ……気持ちいぃいい！奥、ポルチオ、当たってるよっ！」
「やべ、もう出そう…このまま射精していいですよね！？」
「構いませんよ。奥のその奥に沢山刺激を与えて、もう出てきて良いことを伝えてあげてください」
「俺、出るぞ…うぉっ、う゛っっぅぅぅ！」

俺らは同時に絶頂を迎えると、妻の子宮内に精液が放たれた。
だが俺はまだまだビンビンの状態で妻の中に挿入したままである。

※完全版はFANBOXにて公開中

We got married as students.
In the summer of my senior year of college, with no job lined up, we had sex on instinct and unexpectedly hit the target with our first shot inside.
After that, I got a job offer and started my internship.
Then came spring.
I told them that I was already married and that I was expecting a child in June, and then I started working.

I said, "You know, about the birth..."
What is it?"
'You know, do you remember the place we went on the trip where we had this baby?
Of course you do. It was his parents' vacation home.
And you know, I haven't heard from them in a while. They've had a baby, too, and she's due in June.
Is that so?"

I immediately contacted them and arranged to meet them soon.
There was one other couple on that trip.
After the summer vacation, we had not heard from them at all, and we were too busy with our part-time jobs and job-hunting for our new lives.

It's been a while, man.
How's work?
Still studying. I'm still studying, but I have to work.
I heard you're going to have a baby.
I heard you're having a baby too, in June like us. Maybe..." "I was thinking the same thing.

I thought the same thing, but when I heard the details, to my surprise, the due date was also a few days apart.
That meant that the baby had been born during that trip.

Was the baby born during the trip?
Maybe. What about you?
I'm sure we had a baby during that trip. We had sex outside the villa and in the ocean. It was my raw sex debut, my Nakadashi debut."
'Really, so that's it. ......'

Apparently it was made at the same time.
And I got a certain proposal.
Apparently, the woman who became his wife was planning to give birth at the villa in question.
And he asked me if I wanted to have the baby with him.

She said, "Even though your due dates are close, they can't be so close to each other, can they?
She said, "I know, but if you live in that place together, around that time, you'll go into labor sooner or later. My wife wants to give birth at the same place where she gave birth to her baby. I agreed with her, and I was wondering if you guys would be in the same situation.
I see. I'll ask him when I get home.
As soon as I got home, I told her about the proposal, and she gladly took me up on it.

A midwife was staying at the villa, and she told me not to worry about the cost.
Then, X days before the promised due date, I visited the villa again.
I visited the villa again, and many memories came back to me.
It was about a year ago that I gave birth to my child, who was about to be born here.

"Long time no see, everyone is here.
Is the birth coming soon?
"I haven't had any signs of labor pains or an upset stomach. How about you?
Me neither.

The women were all pregnant and about to give birth to each other, and their faces already resembled those of their mothers.
Their breasts had grown so large that my wife's mother's milk was already dripping from her nipples when she pinched them.

We have already moved the cot and other things necessary for the birth into the villa. We've moved our stuff into the bedroom, and the head chef will be there to take care of our meals. So all we have to do now is wait for the contractions to come.
I'm sorry about all this. I appreciate it.

For the next three days, neither of us felt any different, and the midwife continued her daily checkups.

Both of you still have a very tight cervix. If you have sex with me, the semen will make the contractions closer, but I recommend it if you don't mind.
I see. Then let's enjoy each other's company tonight.

Then, my wife said something that surprised me.

She said, "Why don't the four of us have sex here? Of course, it's couples who do it. You never know what kind of sex other couples usually have.
It would certainly be a new experience for us," he said. It's something we don't get to do very often.
Right? It's nice, isn't it?

So that night, when I, the other couple, and the midwife gathered in the living room, we immediately began to have sex.
The midwife led the way, guiding us through the effective acts of childbirth.
First, foreplay.

'Husband, let's touch your wife's nipples. First, gently...then repeat the plucking and pinching little by little. That's right! The wives may begin their own pubic stimulation."

At those words, my wife started clitoral stimulation herself and began to scream.

Hyang!
Oh, my God, that's so erotic!

I touched her pubic area with my finger.
I touched her pubic area with my finger and stimulated her clitoris with my finger, which made her scream even more.

I was so excited that she started to scream even more! No!

My wife, who was pregnant and sensitive all over, climaxed quickly and seemed to be coming already, jerking her body.
When I touched her big belly, it was hard as a stone, and I wondered if it was safe in such a state, but the midwife told me that it was normal when she reached orgasm.
With my penis dripping with juices from the tip, the midwife asked me to enter her in the doggy position.

I'm a little nervous when you're watching me.

I covered my wife and put the tip of my penis against her vagina, and inserted it all the way to the root at once.

"Hyaaaaaan!"

My wife screamed louder than I had ever heard her scream before, and every time I thrust into her cervix, more and more of her love juice flowed out.
After confirming this, the midwife reached out and stimulated us both in the cowgirl position while we were still joined together.
I thrust my hips up to meet her thrusts.
After a few repetitions of such play, my wife's behavior became strange.

She said, "No! Oh, no! Something's coming out!
What? Wait, wait a minute. ......"

I couldn't stop my hips from moving.
I ended up inside my wife, and at about the same time, a clear liquid gushed out from inside her.
The other couple was a little more relaxed.
And as for the other couple, ...... they weren't ready for it yet, and the guy's dick wouldn't erect.

'Wife, would you like me to give your husband a blowjob?'

As the midwife urged, the wife's side put his thing in her mouth and it immediately swelled and became wonderfully large.

'Wife, let's rub your husband's root sack together.'
Ohhhh, I can't wait! I can't get enough of it!"

After that, my friend and his wife, like us, inserted their penises safely in the doggy position and began to pound their hips hard early on.
The sex while watching such a figure is the best feeling due to the raw occultation by sight and sound, and it is the best reward to be able to piston without worrying about the burden to the body pregnant with a child unlike the past several months because it is sex to call for labor pains.

I'm having sex with her, and it feels so good! My pussy is hitting my hole!
I'm about to cum...can I ejaculate like this?
I don't mind. Give him a lot of stimulation deep inside and let him know it's okay to come out.
I'm coming out...oooohhhh!"

We climaxed at the same time and the semen was released into my wife's womb.
But I was still inside her with my cock still in her.