Have her give you a blowjob

"Well ? Aren't you forgetting something else ?" You say

"W-what ?" Answers Katie

"You even forgot that ? It's normal to give a blowjob to guys when they are nice to you !"

"N-no ! I already knew it, of course."

You smile as you see Katie is getting on her knees, unzipping your pants and removing your boxers, revealing your ten inches.

"It's... It's so big !" She says, astonished.

She starts by licking the shaft, you can tell that she's doesn't have a lot of experience, but it isn't too bad.

She then continues to put it in her mouth, but it's so big she can't hardly put more than half of it inside. You can feel every movement of her small tongue licking every part she can. Finally, you are close to cumming.

Where do you cum ?