Use the lube. You don’t even know if you’d enjoy it dry

“I think we should use the lube,” You tell Emily. “I mean, it’s the first time for both of us. Let’s just see what it’s like when we make it comfortable, before we start getting **** or something.” You laugh softly. Pull her to sit next to you in the bed and press your lips to hers in a tender kiss. “Thank you for offering me the choice though, and telling me how you feel. It’s incredibly hot that you are willing to do anything I want, to push past any of your limits for me.”

You hope that putting some of her fears to rest will help her to behave more normally, and not be so needy and frantic to please. You’re not sure she’ll be able to function in life if she’s like that all the time. You caress her cheek lightly with your fingertips. “But remember, everything we’re doing is brand new to me, and still blowing my mind. We can save some of the really wild stuff for day two at least,” you say with a laugh and grin at her. “Otherwise I might have a heart attack and never make it to day two.” You hug her tightly against your side.

Emily hugs you back hard, with both arms around you. Clinging to you like you’re keeping her from drowning. “Thank you so much, Master. You’re so wonderful to me,” she murmurs. She looks up from pressing her face into your shoulder and locks her eyes on yours. “Please don’t joke about terrible things like having a heart attack though. God, just hearing it made me terrified. I couldn’t live if something happened to you.”

She lowers her head to nuzzle against your shoulder and chest again. Her hand moves to your cock and she strokes it gently, coaxing it back to full hardness. “We should talk about happy things, like how good my virgin ass is going to feel for your cock,” she says with a wild giggle.

You can’t argue that that isn’t a happier topic of conversation than having a heart attack at 18. You laugh. “OK, I’m looking forward to feeling how tight and hot your untouched ass is gonna be on my shaft.” You slide your hand up her back and into her hair. “Get me lubed up so I can slide into your puckered little butthole and fuck your ass like you’re a dirty little bitch.”

Your former teacher giggles again as she leans over your cock and drizzles the lube onto it. “I'm your dirty little bitch.” She slides her palm over the head of your cock, smearing the slick fluid all over it, then wraps her fingers around the shaft and strokes up and down, making sure a thick coating is spread all over your dick. She bites her lip, considering, then dribbles more on, and works it around some more.

Then she moves to the middle of the bed, on her knees and elbows, facing away from you. Offering her ass for you to take. She wiggles her ass back and forth and moans, “Use me. Fuck my ass. Make all my holes yours.”

You don’t need a second invitation. You get up on your knees behind Emily. With one hand, you grip her ass cheek and pull it to the side. Your other grips the base of your shaft to guide the tip to her little star. You push forward, but she’s shut tight, and your cock slips off target. You make a few more fumbling attempts, with you trying to push in and shoving back at your cock.

Eventually, you get the idea to grip your shaft tightly in your fist, high up near the head for support. You line the tip up and lean over her, slowly pry open her tight hole with the head of your cock, bit by bit, stretching it. She gasps in surprise and discomfort. Her ring feels so tight as you invade it.

Finally, your engorged glans pops past the resistance of Emily’s sphincter and is lodged in her hot ass. You pause for just a moment to steady yourself. You can hear her panting fast and shallow, as she tries to keep calm and still for you. You grip her hips with both hands and press in deeper. Her ass clenches on your shaft as it slides in. She shivers and moans out a long, throaty, “Ohhhhhhhhhhh…” as you push in all the way to the root of your cock and your crotch presses hard against her ass cheeks.

You start to stroke in and out, easy and slow, getting used to the feeling. Each time you slide in, Emily groans deep in her throat. She starts to push her hips back against your thrusts, rocking back onto you when you press forward. She grips the sheet under her tightly in her fists. Her voice is a growl as she says, “I’m your dirty bitch. Your whore. Filthy. For you. Just for you, Master. Use me. Use me any way you want. Do disgusting things to me. Anything. Just always use me’ee’ee’eeeee…” Her rocking onto your cock gets faster, harder, more urgent as she works herself up with her words.

She releases her grip on the sheet with one hand and slides it under herself. From the movement and noise, you can tell she's rubbing her pussy fast. “Tell me!” she almost shouts. “Order me! Make me cum with your cock in my ass. Master. Make me do it!”

You manage to get past the surprise and stammer out, “C’cum. Cum dirty little bitch.” You drive in as deep as you can and your hands clench hard on her hips.

Emily moans and her body jolts and locks. Her ass clenches down on your cock like a vise. This is all too much for you. It sets off your orgasm. Your cock pulses and pumps your load into your enchanted ****’s rectum. This makes her cum again immediately, or maybe just keep cumming, you really can’t tell. Her body shakes, and she almost howls. You can feel her juices splatter on your balls as they drip over her rubbing fingers.

When you can move again, you pull out and drop onto her bed on your back, splayed out and breathing heavily. Emily climbs out of bed and totters unsteadily to the bathroom. You watch her, curious about what she’s doing. She comes back with a towel jammed between her thighs and a warm, wet washcloth. She gently, reverently strokes the cloth over your balls and spent cock, cleaning it for you. When she’s satisfied that she’s done a good job, she places a soft kiss on your shaft. “Thank you, Master,” she says in a contented sigh.

You lay there for a long time, just breathing, with Emily’s head resting on your thigh. Eventually, you have to get ready to go home. It wouldn’t be safe for anyone to see her driving you, so you’re going to have to walk. She looks on the verge of tears as you get dressed. You leave her after a long, passionate kiss and a promise to come back tomorrow after school. She nods obediently when you tell her you have to go, but her face looks distressed.

As you walk home, you realize it's not going to be easy to see Emily every day without some kind of cover story about where you are. With the way she behaved today, you aren’t sure it would be safe to skip a day. You can’t think of anything that makes sense as an excuse for all seven days of the week. You badly need advice. You wish you could talk to someone about all this.