"Fuhhh... This thing is tiring. I need water."
Miss Shizuka immediately gave her a mineral water bottle while massaging her shoulder gently.
"Ah, teacher. You don't need to do that!"
"Fufufu, let me spoil my cute students." She giggled, her soft fingers touching Saya's nape, earning an elicit moan from her.
Even when nothing erotic happened, Saya's sensitivity had increased from our non-stop week's play on the sea. That was a bit dangerous.
"Ughh... T-Teacher stop it!" Saya groaned.
Ignoring them, I went outside to refuel the yacht, pouring the contents of the fuel container to the fuel tank.
I would need to fill all 4 20L containers every time I wanted to go full tank. If I drove slowly, using 1L for roughly 6 kilometers, 1 tank of 20L could last for 120 KM.
'That will give us around 480 KM to play with. Let's assume we only have 400 KM and save the rest in case of emergency.' I thought.
Unfortunately, I had no map on the yacht. Maybe there were some around this coast but we couldn't really go to land to find it now. What I needed was the internet and laptop or smartphone, which we didn't have right now. All I got was a compass.
'We can manage to last for 3 days with this fuel. Then I can use my Shop to buy fuel if we need it, no need to risk stopping again. 20L fuel for 20 Shop points, I say it's worth it.'
To reach our destination, we might need 2 to 3 more weeks. Staying in the sea meant we were relatively safe compared to the land where we would get attacked by the infected and survivors, though it didn't mean we were completely safe.
If the engine got damaged due to the storm, then our trip would become even longer. I also assumed there might be zombies in the sea, something similar to the one Leon found in that lake in Resident Evil 4.
Yeah, zombie sharks or crocodiles were scary. I hope they didn’t exist.
Anyway, it's time to continue our voyage. I went back to the cockpit to steer the ship after loosening the rope.
When I saw no one but Miss Shizuka was in the cockpit, I questioned her.
"Saya went to the bathroom. Meanwhile, Saeko went to the bedroom after taking a bath, saying that she's tired and wants to sleep."
"Hmph, let's start then."
I turned on the engine, readying my hands to maneuver the steering wheel. The vessel roared in response as I pushed the throttle forward and steered it into open water.
Looking back behind myself, I saw an endless horizon filled with nothingness spanning across the entire expanse beyond viewable distance.
A vast blue expanse stretched out ahead of my gaze. Our goal lies somewhere beneath its calm surface awaiting us eagerly.
While steering the wheel, Miss Shizuka stood next to me and asked, "Hey, why Alaska?"
"It's impossible to cross the vast ocean with its weather changes and storms in the middle of the sea. Thus, instead of aiming for the US directly, we should sail along the Siberia coast to North America. Fortunately, unlike the Pacific Ocean, the Arctic Sea seems calmer and it isn't too deep."
"I see." She nodded understandingly before asking another question. "Do you think Rika will be able to pick us?"
Honestly, I didn't know. Our communication had been cut off since I sent the last message that we were going to the US through the sea route. Whether she received it or not, I didn't know.
Still, our communication with the US army earlier mentioned that they knew about us, so the chance was high that she knew and waited for us in Alaska.
"Let's hope so." I answered nonchalantly.
"If she doesn't come to pick us up, I will get mad at her and spank her ass!" Miss Shizuka pumped her fists. Then, she looked at me, "Or do you want to be the one to do that?"
That sounded so kinky, it made me hard down there.
We spent the rest of the day chatting with her, talking about life and stuff like that while occasionally steering the yacht.
When afternoon arrived, Saeko entered the bridge with messy hair. She wore nothing at all, with a vibrator dangling in her pussy.
"Sis?" I questioned her in surprise.
Even Miss Shizuka was surprised upon seeing her.
She looked so needy and sexy.
Tiling her head, she looked at me and noticed where my gaze wandered off.
Realizing this fact, she shyly spoke, "I fell asleep while masturbating..." Her cheeks flushed pink as she stared downwards bashfully before continuing, "Brother, please service me. My pussy needs it desperately."
Miss Shizuka giggled at this display while giving a playful wink toward us. "It seems I need to steer the ship. Leave it to me, I have seen how you do it, so it should be easy~"
Without wasting any further moment, I pushed my sister to the wall and raised her leg. The vibrator dangling on her wet pussy came off.
I opened my zipper and my rod came free, throbbing violently. I touched the entrance of her wet vagina and rammed inside her without warning.
And so we fucked against the bridge wall while Miss Shizuka watched from the side. My sister's boobs bounced up and down forcefully in rhythm with every thrust I delivered into the depths. My tip reached her cervix and penetrated through the uterus area each passing moment.
No need to mention, I finished inside her womb, planting a thick creampie filling up her womb to brim overflowing from the hole and running down inner thighs. With our mixed body fluids coating her lower parts thoroughly, I kissed Saeko lovingly afterwards.
"Haaah~ Brother! ♥ So rough, so good!♥"
"Watching you both makes me so wet." Miss Shizuka giggled cutely. Her hand held the steering wheel while the other played with her pussy through her panties. Her tits swayed up and down in rhythm with the boat's movement.
"You guys are busy. Geez."
At that moment, Saya joined in, looking quite disgruntled as she did so.
"Are you mad because you can't join?" Miss Shizuka giggled naughtily. "Saya-chan can be such pervert sometimes~"
"Wha- that's not what I meant!"
In the end, she joined too.