Sexual experiment (2/2) +18

(A/N: Just a heads-up, most girls would be very perverted while they are aroused, since this is a smut fic, and that is the most erotic setting that could work, but outside of it, they would be normal, apart from a joke or two)

*Pant*

Tsunade breathed heavy as she had one of the best orgasms of her life.

'Playing with myself usually doesn't bring as much pleasure…'

As she rode the beautiful consuming pleasurable feeling coursing through her body, her mind couldn't' help but think that she had never felt this way before.

'Was I effected by the so called sexual godly aura surrounding Rena and Sakura?'

This was the only thing she could think that could have changed the facts from before.

A bit later, her breathing stabilized, and she looked at Ren and Sakura.

Ren had put her on the bed, roughly, and was drinking a bit of water now, while Sakura licked her lips as she gulped all his cum.

'I need to analyze that sperm,' Sakura had already brought some, but the amount wasn't enough to do all tests… and seeing Sakura licking her lips, she felt the most important tests was yet to be conducted… she felt her own self licking her lips in anticipation.

After the effect of her orgasm subsided, she was slightly embarrassed by doing all that, since she wasn't like this usually.

It was true that she did joke sexually occasionally with her disciples, maybe even a bit of fondling often, but she wasn't a pervert who liked getting off to watching people having sex.

Well, it was more correct to say, she was not that much of a pervert.

Her clothes stuck to her due to all the juices that flowed to her thighs.

And it was uncomfortable.

'I don't need it anyway…' There was a glass separating that hid what she was doing from them by acting as a mirror making them just see their reflections instead.

So, she took off her panties and… threw them aside.

Now she was wearing just her dress and stockings.

Not forgetting what she was doing today, she quickly brought her recorder and started speaking. She documented everything that happened earlier, since she couldn't comment it earlier.

But as she was doing so, her mind couldn't help but bring up the image of Ren's veiny thick cock in its full glory spreading open Sakura's throat.

'I want that…'

Those were her honest desires speaking and even though she had a such a desire, she was still going to wait for the date.

But she did want to feel that cock, spread 'her' throat.

And that spoke volumes to Ren's ability to arouse a woman interested in him.

'But something new is… the feeling that he can fulfill everything I dream of…'

There was this feeling inside of her, that Ren was going to be the best suitable person for her in her lifetime.

Was this something only she felt or all women he had been with shared it?

She leaned more to the latter.

As she was recording and thinking, she suddenly noticed something.

Well, she noticed it earlier, but only now did she register it.

"It seems that his stamina is quite vigorous…"

She spoke into her recorder and kept describing everything. This was a recording just for herself, so she was speaking everything in details.

And it seemed that even after Ren had came, his cock was still hungry for more, and but the look on Sakura's face, Tsunade was sure it wasn't the first time.

She was going to guess that he was excited since he knew Tsunade was watching, but it seemed that even regularly he was like this.

'Sakura didn't mention this, she just said that he had a high amount of stamina,'

But in her mind, she knew men needed a bit of rest time between rounds. She didn't expect that he would till be hard and not need anytime for rest.

She then saw Ren had finished his drink and was going closer to Sakura.

"You're very tight today, is it because your master is watching?"

"What a dirty girl you are…"

She could also hear the dirty talk Ren was saying to her disciple and it both embarrassed her and arouse her further.

**********

"What a dirty girl you are…"

Ren stepped on the bed and walked on his knees toward Sakura.

"Stopp…"

She told him weakly as her face was red and she was embarrassed.

Not by the action itself, but by the fact that her master could hear them.

*Nod*

Ren nodded as he chuckled.

"I'm acting as if she isn't there, it helps me to act like I would normally,"

"But… do you want to stop now?"

Ren explained to her, and then asked her.

He already knew the answer though.

'As if she'll stop now, hehe'

He could feel her arousal and he could feel even Tsunade's. As such he knew Sakura wasn't going to stop.

That as answered when Sakura shook her head, with her hands still covering her face from the embarrassment.

"I-I want… to continue"

She muttered weakly.

She was very excited today, and she didn't want to lost his feeling.

She had already surrendered herself to feeing the pleasure that came by Ren.

And she wasn't about to stop now.

Ren saw her determination, and then he chuckled.

He more or less could guess what she was thinking, and if Tsunade wasn't here, he would have let her taste his newest skill in the arsenal.

He chuckled and then turned his head to see the mirror glass which Tsunade was hiding behind.

'Well, what position would be good to show her from here?'

He started wondering to himself.

He, of course knew that she had orgasm, as he could tell that by his trait.

But he wanted to give her a good view of Sakura getting railed.

'I'll start easy,'

He grinned as he told Sakura.

"Turn around on your stomach,"

He said, and even though she appeared embarrassed, she turned obediently.

Her ass was even raised slightly as if inviting him to get a taste of her visible beautiful pussy lips.

And her face was pointed at Tsunade, exactly as Ren intended.

He stepped closer for a better position, and then he lined his cock to the entrance, before he grinned in the direction of the glass, and then thrusted at full power.

*Shlak*

His cock speared through her folds, spread her apart, and finally encountered resistance as it punched into her cervix.

The experience was never easy for women, as it sent a shocking amount of pleasure coursing through their bodies as that happened. (A/N: Yes, I know it's painful in reality, I'm following the logic of anime and hentai)

*Hng*

Even for him, it was such a satisfying thing, and it also was pleasurable for him, both as his cock was stimulated by that, and also mentally s he knew he had gone in balls deep.

*Moaaaannnnn*

Sakura screamed from the pleasure, and even her hands that she as hiding her ace with were dropped to the bed as she gripped the sheets, and her body shook from the pleasure.

But Ren wasn't don just yet.

As he was above her now, he put his hand on the bed closer to her own arms, and then he let his body weight affect and guide him as he started to pound into her.

*Shlak* *Shlak*

*Shlak* *Shlak*

Each thrust was similar to the first one, so Sakura kept screaming erotically, and her expression was getting lewder by the second.

And Ren grinned at Tsunade's direction as he was doing this.

**********

Meanwhile Tsunade was shocked to say the least.

She observed how his thick cock with all its muscular and veiny figure, disappear inside of Sakura's smaller body in comparison.

It was such a weird/erotic occurrence, that she wished he would just raise Sakura so that she could see where his cock was reaching.

From how thick the cock was, she figured it should show bulging through her stomach.

As if her desire was heard by Ren, he suddenly fixed his hands-on Sakura and raised her body up.

He started walking with her still connected to him, and then he brought her right next to the glass.

Tsunade's face heated up as she could feel herself get even more aroused.

Sakura had her back stuck to ren, and her legs were opened by him as he was raising her in the sky, and his cock was visible through to her now.

Ren laughed.

"Don't be embarrassed Sakura, this just for scientific research so that your master can observe more appropriately and not miss any details,"

He said while grinning, and then not waiting for Sakura to speak, not that she was going to refuse or anything at any rate, he started thrusting up into her pussy with full speed and power.

This time Tsunade got her wish, and was able to observe how his cock was making Sakura's stomach bulge, but it also seemingly didn't hurt her at all.

*Shlak* *Shlak*

*Shlak* *Shlak*

Due to the position, the pleasure it brought to Sakura this time was beyond that of before, so she couldn't control her facial expression and ended up showing her real state.

Her eyes rolled to the back, her tongue was out of her mouth, and she was getting railed like a slut at this moment, which based on her expression, Tsunade would definitely say it was very close to that.

But who was she to judge?

Without even doing the same thing as Sakura she was already masturbating and watching them fuck each other, and had already forgot about her recording.

She stepped on the table as the arousal got the better of her, and then she put her face near Sakura's pussy and Ren's cock that was spearing her open, but thankfully for her the glass separated them and prevented them from seeing her, which in turn made her bolder.

She observed that heatedly, while she was kneeling on the table, her legs spread and her hand furiously rubbing her own pussy that had no panty and was visible, as was her tits.

*Ahnnnn*

Then as this went on for a while, Sakura could no longer keep up and she ended up cumming immediately, and Tsunade by that time had put her face on the glass and was even licking it as if licking Ren's cock.

But as she saw the juices of Sakura spraying on the glass, her leg moved slightly back and she ended up pressing a button on the table which in turn… led to the mirror becoming ordinary glass.

*Moannnnn*

And the Tsunade… ended up cumming.

*******************

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