“Sis— the bath’s free~” The moment there was a knock on my door, I heard his voice.
Yuichi said only that and quickly went back to his own room.
But perhaps he found it strange that I didn’t reply and that I hadn’t come out despite clearly wanting to bathe as soon as possible… Yuichi came back to my room and this time opened the door to peek inside.
“Sis… whoa!?” A voice that sounded like it slipped out involuntarily.
Right now, I was lying on my back with the front of my tracksuit wide open.
Moreover, since I had taken off my underwear and undershirt earlier, I was wearing nothing underneath — no bra, no panties — with the tracksuit directly against my bare skin.
With the front open like that, various parts were on the verge of slipping out.
“W-what kind of way is that to sleep…!?” Yuichi turned his eyes away after seeing me sleeping in what could only be called “naked tracksuit,” but then his gaze landed on the underwear and other clothes I had taken off, causing him to panic again.
His body, however, was honest… a clear bulge was rising under his thin loungewear.
“Ugh… nn…” Desire welled up inside him.
But Yuichi hesitated, glancing repeatedly toward the door.
Ah, right.
It’s still broad daylight and Mom and Dad are still home… he’s probably worried about getting caught… However, heaven had not abandoned me.
“Mizuha— Yuichi—” “!?
W-what is it, Mom?” “I’m going out to buy ingredients for dinner, so watch the house for me, okay?” “Eh, what about Dad?” “He forgot about the neighborhood association meeting today and just rushed out.
Can I leave it to you?” “I-I see… okay, take care.” “Yeees, I’m off~” Such a conversation took place.
Now every worry was gone.
Yuichi let out a long breath… then, as usual, climbed on top of me where I lay on the bed.
He grabbed my breasts roughly through the tracksuit and started squeezing and kneading them aggressively.
…Ouch, the fabric rubbing was a bit painful.
When he noticed my breathing growing slightly ragged even while “sleeping,” Yuichi glanced at the massive tent in his pants that had grown even bigger, then instantly pulled them down along with his underwear without hesitation.
His already fully erect, upward-curving cock sprang free, throbbing eagerly as it waited for its turn.
Even though both parents were out, there wasn’t much time.
Especially since Dad could come back anytime… he would probably try to finish quickly.
Even without that, he had clearly reached his limit and wanted to thrust in as soon as possible.
Besides, in Yuichi’s mind, I would head straight to the bath the moment I “woke up,” so even if he dirtied me or came inside, it would all get washed away and the evidence would disappear.
That’s surely what he was thinking — and I had already predicted that much.
Just as expected, Yuichi reached for my tracksuit, intending to strip it off quickly so he could fuck me… “…!” But then, for some reason, he stopped.
Hm?
What’s wrong?
Yuichi froze with an expression like he had noticed something.
…Was there something strange about my body or clothes?
Other than being naked underneath, everything seemed normal… Then Yuichi suddenly lifted me up and hugged me tightly… ugh… I like being squeezed like this and it feels good, but… it’s hot… While I wished he would just take the clothes off quickly, Yuichi instead— ——Suuu… haaa… …Why is he taking deep breaths?
He pressed his face against my neck and took several deep breaths.
Then he buried his face between my largely exposed breasts and breathed in deeply again.
Then even further, he pressed his face into my crotch — still covered by the tracksuit — and inhaled deeply once more.
…This guy, don’t tell me… Right after that, Yuichi pulled the tracksuit zipper that he had been lowering all the way back up almost to the top.
And so, what began was… “Haa… haa… Amazing… Sis’s body… the sweat… it smells so fucking good…!” He zipped the top of the tracksuit tightly closed again, then pulled the bottom down just enough to expose my ass.
In that state, he thrust his cock into me from behind and started fucking me.
His thick, rock-hard cock spread my slick pussy lips apart and sank deep inside my dripping tunnel in one powerful stroke, stretching my inner walls tightly around his throbbing girth as he buried himself to the hilt, the veiny shaft rubbing deliciously against every sensitive fold.
Yuichi clung to me from behind, resting his chin on my shoulder in a tight embrace… inhaling and savoring the scent of my body odor and sweat while thrusting his hips.
Awakening to a brand new fetish at such perfect timing, what a pervert… Because I was still wearing the tracksuit, I kept sweating heavily from the heat, and the inside of the clothes was already soaked.
Yuichi slipped his hand under the tracksuit from my stomach and groped my breasts.
Naturally, his hand became sticky with my sweat… and since Yuichi himself was also sweating (including sweaty palms), everything mixed together into an even messier, sloppier state.
My breasts were being kneaded under the clothes with wet, squelching sensations that were almost audible.
The humidity and smell trapped inside the clothes must have been intense… and Yuichi was greedily inhaling the scent leaking out from the collar.
“Nn… lero… picha.
Haa… Sis’s sweat…” Hyaa!?
H-he licked me… Ah, he’s getting excited by licking my sweat… Does my sweat taste good…?
No, it should just be salty, right?
Ah, now he’s sucking on my earlobe… That actually feels pretty good.