This is the chapter that gives this fic it's M rating. Thank you for waiting patiently for it :)

I really like getting reviews, by the way, so if you have any constructive criticism or praise and whatnot, please post :) They make me really happy.

Oh and, this is my first time writing a lemony shizaya fic so if there is anything off or awkward about the lemons, please let me know ;)

Thanks and enjoy!

Shizuo scattered passionate kisses all around Izaya's lips, neck, and jaw line, and slowly worked the buttons on Izaya's shirt.

His cold hands pressed against Izaya's bare, warm chest, and Izaya trembled at the contact. He gripped Shizuo's shoulders, pulling him closer and Shizuo began to kiss and caress his chest, causing Izaya to emit, to his sudden humiliation, soft, seductive moans.

A stray hand of Shizuo's traveled down to Izaya's crotch, and began slowly touching, gently, but in a way that Izaya's eyes widened and he let out a gasp.

Shizuo, apparently enjoying this rare reaction, set out undoing Izaya's pants, reaching in, and grabbing his fully enlarged member, which was dripping with pre-cum.

Izaya was immediately lost in the wonderful, ecstatic, bliss of the intense friction from Shizuo's hand rubbing his length. He let out a large moan, digging his nails into Shizuo's back, and came in Shizuo's hand, in which Shizuo licked off.

Shizuo began to undo his pants while Izaya lay there trying to regain his senses, once again.

What was he doing? This was definitely not in his plans! Sleeping with his own experiment?

This entire situation suddenly became vile and cold in Izaya's eyes. He had to stop this, before it went any further.

"S-Shizzy, lets-Ahh" Izaya cried out at Shizuo, who was not listening to him, and suddenly, without warning, spread lube around his ass.

This was too much. Shizuo wanted him and there was no stopping him. His lust filled eyes met Izaya's glimmery and conflicted ones, making Izaya turn away.

"S-stop, Shizzy, that's enough, I…mmpghh!"

He was cut off by a ferocious kiss, instantaneously weakening his defenses, and he submitted himself to shizuo. The truth was, that he was absolutely dying for more. He would never admit this, being the cold and controlled person that he felt he was.

Shizuo positioned himself and breathed heavily near Izaya's ear.

"I'm coming in, Izaya Kun."

He pushed his huge length into Izaya's tight, slick opening, and Izaya cried out in the flash of pain, clutching Shizuo, digging his nails into his back. Izaya's mind was blank. He could not think. He could only feel Shizuo inside of him, pushing deeper and deeper and deeper.

Shizuo stopped, resting for a moment before he slowly pulled out, making Izaya shiver and then cry out again, this time in pleasure, as he thrust back in rapidly.

This motion became faster, more intense, with rapid breathing, beating hearts, limbs clutching each other, and muscles tightening in anticipation. An electricity filled Izaya. A tingling sensation engulfed his body and it pulsated, spreading and growing more intense. Izaya reached his peak. All of his conscious worries and thoughts were gone. All he could think of was the spreading heat, the thudding of Shizuo's body into his, and the animalistic way he needed MORE.

More. More. More!

Then it came...

The feeling.

It was beautiful, engulfing his entire body into spasms of pleasure.

His seed spilled out onto his chest and moments later, Shizuo let out a moan, collapsing on top of Izaya, exhausted, and still trembling from the feeling. He pulled out of Izaya and then fell back on top of him, breathing hard.

Izaya lay there with an exhausted Shizuo on top of him as he, for the millionth time, tried to recollect what had just happened.

He just had sex with Shizuo. How the hell did he get himself into this?

He recollected his past, analyzing his and Shizuo's every action as it played out like a movie in his mind. Then, he uttered a laugh. He practically doubled over when he came to the final result of his analysis.

He had done it. He had set it all up so Shizuo was bound to fall in love with him. After all, he was the one who had led him on, letting him into the bath, being nice, agreeing to be his lover. And what a mess it had led up to! He was so stupid. He had known it was going to fail like this, and yet doubted it, ignored the signs, and messed up.

Those stupid emotions. Why the hell was I so affected by these stupid human emotions? How the hell did I let him do this to me? Why didn't I think? Why couldn't I think?

These questions plagued his mind and he clutched his head in frustration.

Looking at the sleeping Shizuo, Izaya knew he had only one option left.

He could not go on like this.

He struggled, lifting Shizuo off of him, getting off the bed, and then, he finally collapsed on the floor with a severe pain in his lower back.

Muttering to himself and groaning, he managed to hobble into the shower and rinse himself of Shizuo.

He packed up a small duffel, snatched up his phone, left money on the counter, and walked out the door.

He had to leave for good.

Sorry Shizzy.

His experiment had failed.

Shizuo and himself were better off apart. Things would go back to normal. They had to.