Their gazes met, and they softly pressed their lips together…
Wet, squelching sounds echoed through the bathroom.
"Ahn, no, Kazu-nii... nn!"
"But this part of you here is telling me to touch it more."
"Nnnn! That's because..."
Embarrassed as she was, love juices endlessly spilled from Irina's slit. Teased between her legs from behind by Kazuki, Irina let out sweet moans.
"Your breasts are large and beautifully shaped, Irina. Truly, the breasts of an angel."
While kneading her pussy with his right hand and her breasts with his left, Kazuki ran his tongue along the nape of her neck. With her twintails undone and her hair let down, Irina's usual lively image was suppressed, and a mature allure drifted from her.
The most beautiful breasts Kazuki had ever seen until now belonged to Grayfia and Yumi, yet Irina's breasts traced an ideal curve that was in no way inferior to theirs.
"Aah, ahn, if you knead my boobs that much... aaahn, don't tweak my nipples!... Haaahn, ahn, when you put a finger inside my pussy... yaaan, don't pull my pubic hair!"
Kazuki pinched her erect nipples with his fingers, slipped one finger inside her vaginal opening, and began slowly pumping it in and out.
At the same time, he playfully tugged at her pubic hair, slick with her juices. Then, he flicked a finger slicked with that same wetness against her clit, still hidden beneath its hood.
"Haoohhn! Not there, Kazu-nii! That place feels way too good!... Aaah! Aaahn! No, no more, no moooreeee~~!!"
With her nipple pulled by his left hand, the fingers inside her pussy increased to two, and the now-exposed clit pinched. Irina cried out in ecstasy and climaxed.
'Right. As I thought, merely coming doesn't seem enough to make her fall. In that case, next is…'
Before Kazuki's eyes, Irina was on all fours, gasping for breath. Drool trickled, and her vaginal opening, gaping slightly, her pubic hair plastered to her skin with love juices, and even her light-pink asshole were all completely exposed.
The obscene sight, unimaginable from her normally cheerful demeanor, stole Kazuki's breath, and he reached for his next target.
"Nnhyii!?... Ka-Kazu-nii? That's the wrong... uhyiiin! Oaah... that's my asshole..."
Kazuki inserted a finger, wet with Irina's fluids, into that fully visible asshole. Irina's back entrance offered surprisingly little resistance, noisily swallowing his finger with a squelch. Attacked in a place she never expected, Irina screamed.
"No way... No waaay, stop, Kazu-nii! That's my asshole... uguu, i-it's dirty, you know...?"
As her asshole was being tormented, Irina pleaded for him to cease. But Kazuki ignored her pleas and continued slowly thrusting his finger in and out. Before long, a change came over Irina.
'Ehh!? What is this? At first—no, even now it hurts, but it's not just that... Why? Why am I feeling good!?'
Irina couldn't believe her own body's reaction. Adding twisting motions to the thrusting, Kazuki observed her state.
'She started feeling it sooner than I expected, but it's still tight. Part of it is nerves; let's loosen her up first.'
Pulling his finger out of Irina's asshole, Kazuki instead pressed his rigid, throbbing cock against her slit and rubbed it back and forth.
"Uaaahn, nn... Kazu-nii's is amazing, so big... aahn, that spot feels gooood!!"
Though bewildered by suddenly being attacked in a different place, Irina cried out at the sensation of the massive shaft rubbing against her entrance.
Perhaps it truly felt better to have her pussy teased than her asshole, because Irina, wanting to feel even better, closed her thighs, trembling at the feeling of his shaft sliding along her slit and grinding against her clit.
"Aaahn, haahn, nn... this is nice... my pussy feels so gooood!!"
As if taking a liking to the intercrural rubbing, Irina surrendered to the pleasure and let out sweet moans. From behind, Kazuki squeezed her beautiful, large breasts and pinched her nipples mercilessly, intent on making her come.
"Ihyiin! Th-That, noo moreeee~~!!"
Pssssshaaaaa!!
Irina climaxed with a gush of squirt. And simultaneously…
Splurt! Spurt! Spluuurtt!!
Kazuki came as well, painting Irina's belly and breasts white.
Irina's body went limp from the climax, all strength leaving her. And that, precisely, was what Kazuki had been aiming for.
Her ass remained raised, now slumped in a broken arch. Gripping her hips with both hands, Kazuki aimed his cock at Irina's asshole and thrust inside.
"Agiiiih!... Kahyu, ooooh... Wh-What is this...? My butt-hole is stretching... ha, oooh..."
Irina had fought as a warrior of the Church. She had been cut, stabbed, many times on missions, but the shock she felt now shook her to the core more deeply than any before.
Different from a finger in length, thickness, and hardness. The impact, as if she were being skewered, left her unable to even breathe, and she simply trembled.
"Calm down, Irina. Breathe slowly."
Whispered to by Kazuki right at her ear, Irina reflexively started breathing again.
"Hahyuuh... hahyuuh... nhaah... aaah, uun..."
"Are you okay, Irina?"
"Kazu-nii... um, does that mean... Kazu-nii's is..."
"Yeah. My cock is inside your ass right now."
Just as Kazuki stated, Irina's asshole was stretched to its limit, clamping down around his cock with a tight, vice-like grip.
"It's weird, Kazu-nii. Putting your... your dick inside my butt... a place like that is dirty, you know...?"
"There's no part of you that's dirty, Irina. Besides, it's something you just didn't know about, but it's called anal sex—sex using the ass. It's not something weird at all."
"It's... not...?"
Kazuki declared this while stroking Irina's bottom. It was true as he said, though anal sex was an act more on the side of perversion and abnormality, and the current situation was far from normal.
However, Irina, raised in the Church and utterly ignorant of sexual knowledge, believed Kazuki's words…
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