Not quite

After a moment or two, she comes back with a wooden ruler in her hand. She drops to her knees in front of you, and slowly slides your boxer briefs down your legs. Your unimpressive cock pops out, your erection having abated slightly.

"Aww." she says, "Our little friend isn't standing at attention anymore. We can't have that." She looks up at you with a grin, before leaning in and gently kissing the head of your cock. All it takes is one, and your little cock is standing straight up again. "There we go."she says, before pressing the wooden ruler against your member. You hold your breath in anticipation, knowing exactly what's about to happen.

"Three an three quarter inches. Just under. Looks like you're doing a little forfeit."

"Oh yeah?" You say, your voice wavering. "W-what are you gonna make me do."

"Oh, don't think of it like that. I'm not making you do it. You're going to do it because it makes me laugh. You're going to do it because I like watching you blush. You're doing it to please me. But, mostly you're doing it because if you don't, I'm going to make absolutely sure that there isn't a woman on the entire campus who doesn't know exactly how small your little penis is. Not only that, all of them will know that you get off on women making fun of it. You won't be able to take three steps without someone wiggling their pinky at you, with that knowing smile. You'll be Mr. Little Johnson forever, and I'll make sure of it."

She stands up, and presses her large, barely clothed breasts against you, whispering the last few sentences into your ear. "Now, as for what you're going to do for me..." She grabs your phone from the pocket of your pants, and hands it to you. She then holds the ruler up next to your cock. "You're going to take a picture, and send it to Mrs. Adams and tell her that Ms. Victoria says she was the closest without going over."

"That's too much!" You say, which causes her expression to change from a mischievous one, to a more serious look, with a vocal tone to match.

"No, Mr. Little Johnson. It is exactly the right amount. What you fail to see is that I am taking my valuable time to play with your pathetic little cock. I can get any man I want, and I'm sitting here in front of your baby dick. You're a lucky little man, and you'll do as I say." She pauses, allowing her to shift back to a softer, more playful tone. "Now, let's give Mrs. Adams a fun little surprise."

With a blush in your cheek, you take a picture of your cock next tot he ruler, and send it to your colleague with the message you were ordered to type, hoping Mrs. Adams isn't awake.