It's no secret that you want more than just worshiping this girl's feet, you give into your desires.
With Pixie's feet still raised high up into the air, you tell her, "Place your pretty feet onto my cock.. right here, Pixie." You guide her feet gently towards where your bulge is located.
"Yes master, as you wish." She says with a blush, making you grin since Pixie Knight would do whatever you please.
"Now rub up and down." You instructed her, and you immediately feel the rubbing upon your pants.

Even though you still had your pants on, just the rubbing itself was enough to make your whole body surge and tingle all over. However, you begin to have other ideas soon.
"I want you to tease me, Pixie. I want you to show how much you really want to see my cock." You told her.
Pixie suddenly had a shift in her personality. A grin formed upon the young girl's lips, before the motions upon your cock became a lot faster than before.
"Do you like it when I rub my feet on your cock? Does it feel good, master? Mmm.. it's so hard!" Pixie tells you with a teasing tone, and just hearing those words from her was like music to your ears! You didn't say a word, only nodding with a quiet moan escaping from your lips. You can hear Pixie giggling at her actions, seeing as she herself was enjoying things.
"Stop." You said. Pixie Knight immediately halted her actions. She let out a whimper and sigh, as if she was wondering why she was told to stop. You didn't say a word to her just yet. However, you did unbuckle your belt, before your pants would flop down to the floor. Pixie let out a gasp at the sight of the sheer erection that you've been hiding this whole time. You had to admit, for someone that's so young, Pixie Knight has really sexy and attractive feet.

"W-What are your commands?" She asked eagerly, wondering what was going through your mind right now?