Warning: There is a mature part in this chapter<3
Itachi was woken up by a sudden jolt as his forehead bumped against something solid.
"Shit", he heard Shisui mumble.
Itachi rubbed his eyes slowly and registered his surroundings. He was back in the car, they were moving at a steady pace.
"Are you okay? I didn't see that rock, so it kinda jolted the car and I really didn't want to wake you", Shisui said sheepishly.
Itachi was beyond okay – he felt fulfilled. He was Shisui's boyfriend now – they were together. The thought made him giddy with excitement. This was his first relationship.
This was special.
"What are you thinking about?" Itachi heard Shisui ask intently from the driver's side.
Itachi didn't know how to respond – he was too happy. He didn't have the words – in his extended vocabulary – to express what he was feeling.
"I'm sorry if things went a little too far the-" Shisui started saying sadly, but Itachi cut him off.
"No, it isn't that. That was", Itachi looked down shyly, "Really nice...I just haven't been in a relationship before so I don't really know the rules."
Shisui didn't know how to explain what the rules were to Itachi – normally it was obvious. He struggled to find the wording.
"Uh...well, there's honesty. We have to be open and honest. And...faithful" Shisui seemed to stress that word. He continued talking and Itachi paid careful attention.
Before they knew it, Shisui had parked in Itachi's driveway. The two sat in a comfortable silence, not wanting the night to end.
Itachi glanced at the red letters of the time on the car clock: 10:57pm.
He grew slightly nervous, after what they had done in the field things seemed to be different – more intense.
But Itachi wanted even more intensity.
"I have three minutes", he said matter-of-factly.
Shisui didn't detect the lust in Itachi's tone as his tone was often the same. Itachi undid his seatbelt and climbed across the divider, planting himself easily on Shisui's lap. It all happened so fast that Shisui didn't have time to register the compromising position they were in.
Itachi's fingers found themselves in Shisui's hair, tugging gently at the messy black locks. It earned him a slight groan – and he took note that Shisui always seemed to like when Itachi tugged on his hair.
Itachi was fast as he connected his lips with Shisui's, teasingly licking Shisui's bottom lip. Shisui gripped harshly on Itachi's waist and opened his mouth – their tongues dancing passionately. Itachi was always so sensitive to Shisui's touch, so when Shisui's hands made contact with the skin of his waist – by slithering under his shirt – his back arched and he gasped. The embers that Shisui's touch sparked always overpowered Itachi's self-control.
But the motion caused Itachi to press down further on Shisui's lap.
And this was a problem for the now very hungry Shisui, his manhood was in contact with Itachi's ass – and he grit his teeth, trying to keep control of the situation.
Closer, Itachi's mind tempted.
So he pressed down again, getting a deep groan from Shisui. Itachi didn't know what he was doing – he didn't know what it usually led to.
But Shisui did.
Itachi eventually disconnected their mouths, a slight trail of saliva hung between them.

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Back To You [Shisui X Itachi]
FanfictionModern AU (Completed 13/03/2021) In terms of love, what awaits Itachi? Going through high-school unnoticed and invisible - just how he prefers it. Burying himself in mountains of notes to cover up a hole he didn't know existed. His brother was his k...