Take the practice

Ever since you turned down Sarah's latest offer of a blowjob, you've been nursing a semi at minimum, which often flared up to a full erection at just the thought of having her lips wrapped around your cock again. However, you managed to stay true to your convictions because you honestly believe that it is the best course of action long term, even if it denies you pleasure right at this moment. Now, you have the choice to relieve the tension you've been feeling all day and not compromise your relationship with Sarah, if Mr. Robinson is to be believed. You have no desire to betray Sarah or do anything that would hurt her, but you can't think of any arguments against his. Or maybe you don't want to. Either way, you are going through with this.

Looking at Mr. Robinson, you reply, "Yeah, you're right. I'll, uh, practice."

"Great! I have a meeting with the administration so you two can use my office. Try not to make a mess. Or do," he says with a wink as he leaves.

You look at Emily, who is still sitting down with her eyes on the floor. "Err, but only if you're okay with it," you tell her.

She finally looks up at you, confused. "You're the first guy who has ever asked me that..."

You are a bit taken aback at that. "Oh. It's fine we don't-"

She cuts you off. "No, no, please! Mr. Robinson made things very clear and I owe him so much. Please, just let me do this," she says, giving you a sad smile as she goes to her knees in front of you. You want to stop her, but her hands are already at work undoing your pants, and your cave man brain shuts down completely. When she pulls your cock out, she is neither surprised nor fazed by your size, quickly getting down to business. She spits on your cock a few times, coating it with her saliva and then wrapping both of her small hands around her shaft and moving them up and down, spreading the spit across your whole cock. Then she puts her mouth on it, sucking the end of it as her hands keep working up and down, waves of pleasure emenating from your entire cock as she expertly works you with both her hands and mouth.

The pleasure is the same, but the experience is totally different between her blowjob and Sarah's. Their appearances, personality, and techniques were complete opposites. Sarah is blonde, gorgeous, and cheerful where Emily is pale, dark haired, and muted. Sarah kept eye contact the whole time, looking to see how well she was doing, while Emily is focused, keeping her eyes down as she works. Sarah was also completely naked, putting her whole body into her blowjob, her large breasts swinging and bouncing with each thrust while the fully clothed Emily's body remains almost entirely still, with the exception of her head bobbing up and down and her hands moving back and forth. Both of them bring to climax within a few short minutes, though this time you are more prepared.

"I'm almost there," you tell Emily, moaning as you try to hold back. She simply nods as best she can with her mouth full of cock and you finish, blasting cum down the young girl's throat as she swallows with ease, draining every drop from you until there is nothing left. She licks the last remnants of cum from the tip of your cock and goes back to her seat, reapplying the black lipstick she smeared all over your cock as you stand there gasping for air. As you recover, you stupidly say the first thing that comes to mind. "I wasn't too big for you?" you blurt out, years of being self-conscious filling your mind, unaware of how crass and boastful you sound.

Her eyes still on the ground, she replies, "My dad made me... practice... with toys bigger than you."

"Oh. I see. Well, thank you. That felt great and I really appreciate you going out of your way to help me."

For the first time, she looks at you. "Nobody has ever thanked me before..."

How many guys can she possibly have been with at her age? You wonder, then quickly dismiss the thought. "Well they should. That was amazing, and even if it wasn't, you still did something entirely for me and that means a lot to me."

For the first time since you've known her, she smiles in a way that actually reaches her eyes. "That... means a lot." You don't know what to say, so you simply nod. "That was pretty quick, I think we can squeeze another one in, if you want."

You shake your head. "That sounds awesome, but I literally just finished. You're really sweet for offering though."

She seems surprised that you would turn her down. Then she says, "I can get naked if that would help," she offers, now seeming to be eager rather than resigned. Your cock twitches. Despite the way she dressed to hide it, you can't help but notice the jiggle of her rear end, and would love to see it in its natural glory. Then you stop to think about Sarah and wonder if this is too far as you consider your answer.