Compliment her smile

You tell her that her smile is the best you've ever seen (which is true).

She blushes, looking away. "You're not the first one to say that..." she said, kissing you on the cheek, "but you're certainly the best at saying it. You know, a honest compliment like that deserves a reward."

She gets on her knees, looking up at you with her big, innocent, emerald green eyes, and unzips your pants, unearthing (unpanting?) your cock. She plays with it her hands, giving it a kiss on the tip.

"It's cute. I like it. Can I keep it?" she jokes.

She gives it a hearty lick, gliding from the base to the top, leaving a trail of oozing saliva in its wake. She nibbles lightly on your cock with her head sideways, before giving it another lick, which this time ends with her eating your tip, sucking on it like one would a lollipop, before pulling away with a 'pop!'.

She starts to fondle your balls, weighing them in her hand, gently rubbing your perineum. She puts one of your balls in her mouth, gently giving it a suck.

"Mmm... I love them when they're sweaty. Such a nice savoury, salty taste," she purrs, batting her eyelashes, "but that's just the appetiser."

Her lips move back to the shaft (though she is still caressing your balls), as they wrap around, gently and steadily swallowing it, each of her head bobs enveloping another half inch. Her tongue wraps around it, teasing it, tickling and licking it in such a pleasureable way, that you cum in her warm, wet hole there and then, sending your cum down her gullet. She grunts, her mouth attached to your dick by suction. She slowly slides off, licking whatever cum that might've happened to have clung to your shaft, and it pops out, spraying a few wayward drops on her face. She wipes them away with her finger, giving it a lick.

"Mmmm! A little quick, but still scrumptious, wouldn't you agree?" She smiles, and you can't help but agree with her. That was like nothing you've felt before. You tell her you have another compliment.

"Oh yeah? What's that?"

You tell her she's the best at giving blowjobs. She can't help but blush and chuckle.

"You really are too kind," she said, getting up. "I'm going to get myself a towel. Be right back!"