"Howdy!"

The same old Yellow Flower propped up from the ground to greet You. "I'm Flowey, Flowey the flower!" He greeted. "Hmmm... You're new to the UNDERGROUND, aren'tcha? Golly-"

You Hold up your hand to cut Him off in sentence, Telling Him You've already heard all this before, Multiple times in fact.

The flower froze and changed His look. "W-Wait a second, You're not supposed to stop my monologue!" He said. "And You're not supposed to speak either!"

You smirked and simply told Him that You...Made quite a few changes to the game in Hand. 

"B-But...The Hacking system..!"

You proudly stated that You bypassed it.

"A-Ah...!"

with a mischievous grin, You walked right over to the shivering flower. 

"Y...You're gonna harm Me aren't You...?"

to Flowey's surprise, You shook our head.

"R...Really?" Flowey stops shivering. "So You're not gonna-!"

Flowey stopped quickly as He saw You pulling down your pants, Revealing your erect dick in His face.

You gave a thumbs up.

Flowey blushed lightly. "W-Wha-?"

[...] 

"Mmmph! Mmf, Mmm!!~"

You sigh upward in pleasure from the Flowers's tongue slithering around your cock. You give another thrust into the Flower's Surprisingly warm mouth as your cock twitched. After a few more thrusts, You pull back, Giving Him some breathing air.

"Haa... Y-You hacked the g-game... Hah... t-to do THIS?!" He yelled out panting, exasperated with His face red.

You simply nod.

"H-How... Does this even work-MMPHH?!" Flowey was then interrupted by the Player shoving His cock back in His warm Maw.

You tell Him to not question it and continue, Bucking your hips and Face-fucking His mouth.

maybe after some loads were blown into his mouth, You'll continue on with the story...

Toriel also watched the whole scene go on as well, speechlessly with a confused look at the scene in front. Never did she think or assume this of all things would happen...

She backed out silently, Perhaps maybe She could come back later, Things seemed busy now...