First Injection

You fill up the first and second needle with a clear liquid and approach Hannah, who fidgets nervously in her chair.

"Are you ready? After this injection there's no backing out."

Hannah nods her head, "I'm ready professor."

You nod and press the syringe into the boi's upper arm and depress the plunger. Nothing seems to happen at first but soon you can see a faint blush form on Hannah's cheeks and her breathing quickens.

You grab the second syringe and press it to your own arm and inject the serum. Soon you're face is flush and you're panting heavily as well.

"P-professor, t-the aphrodisiac seems to be functional!" Hannah calls out, likely louder than she intended as she heads to the shag carpet room.

"Sure does," you confirm, your voice breaking slightly. You grab the second set of syringes and shakily fill them with the second pinkish serum. You then join Hannah in the room and lock the door behind you, just in case.

You go to Hannah and attempt to keep the needle steady but you're having some trouble with your heart beating so fast, you feel like a young futa about to lose her virginity again. Eventually your hand steadies enough to inject the pink serum into Hannah and you do the same to yourself.

You speak up for the recorder, "The second serum has been injected! If all goes according to plan we may be on the verge of allowing bois to be impregnated!"

You and Hannah stand in silence for a while waiting for the second injection to begin affecting your systems, but only the aphrodisiac seems to be working.

"W-well," you say quickly, "The aphrodisiac is effective at least. Even without the other serum working, the first injection should help with breeding, I recommend-"

You are suddenly interrupted by a loud scream. You look at Hannah as can see something is happening. Her eyes have dilated, her face is filled with an intense blush, even her ass seems to be blushing, her nipples are standing very erect and Hannah's nipples seem to be lactating at an astonishing amount.

"Goddess! Hannah! Are you okay?" you rush over to your assistant and grab her shoulders, keeping her steady.

"O-ooh, Professor! I'm so okay! I'm so great! This is the best feeling!" the boi babbles excitedly, swaying on her small feet. "You're excited too!"

You glance down at your chest which feels warm and wet and see that you too are lactating. You raise an eyebrow in curiosity, the lactation seems to be an unexpected side effect but you're not feeling the same potency as Hannah is feeling. Oh wait...there it is.

You massive cock shoots up with impressive speed, it's iron hard and you see bulging veins a long your shaft. You feel an intense heat on your face and you'd swear you could feel your hefty testicles slooshing with cum. You're nose flares as you sniff the air. Flowers? No, it's Hannah, she must be wearing perfume! And it's driving you crazy! Your cock is pouring a river of precum out and the glans itches! Your glans itches so bad and you need to jam it into a hole!

Hannah skips up to you and gently suckles from one of your milky tits, with a loud pop she frees your sensitive nipple from her mouth and giggles like a bimbo when you moan in pleasure. You lift the boi up and press your lips against hers, and begin tongue fucking her mouth as she wraps her legs around or torso and runs her hands through your hair.

You growl in your throat as the itchiness of you cock head becomes unbearable. You separate you lips from Hannah's an toss her onto the heart bed. Hannah gasps as her soft bottom lands on the fluffy bed and then giggles as she sees your straining cock.

"I don't think Professor Doe can talk right now!" Hannah shouts for the recorder to hear, "She seems to not be in full control of her faculties at the moment and I'm having some trouble as well. Make a note to lower dosage to...lower dosage to...fuck it!"

Hannah lays on her back and positions her legs so that you have a straight path to her lube drooling butt, her anus flexes wildly, seeming unhappy that there's nothing inside it's owner.

"Gimme that monster professor!" Hannah moans seductively, gesturing with a slim finger for you to come and get it.

You lunge into action, nearly pouncing on the bed. You align you massive cock to her hole and press in. You're immediately met with resistance as Hannah's likely never taken an insertion as large as you before. Soon enough the bois accommodating ass spreads open and you bury yourself to the hilt.

Your bestial groans mix with the bois wanton moans as Hannah arches her back, trying to get you deeper inside her.

"C'mon professor! Fuck that butt, rut with me! Knock me up! I wanna have your baby!" Hannah screams in pleasure as you piston in and out of her.

Your cock's itch is maddening, the young boi's hole only helping a bit, you know there's only one way to relieve your iron rod's anguish, cumming into Hannah. You mentally make a note that while you are quite aware of all that's happening you in no way feel the need to express any emotion other than the primal lust that has overtaken you, perhaps a lower dose would make the medicine more bearable.

You grasp Hannah's hips as you two foot long cock hammers into the boi's wet hole, you can even see a faint outline of you cock as it knocks around in Hannah's body. Hannah, for the most part, seems to be enjoying herself. Hannah's tongue is hanging limply out of her mouth, her eyes are staring vacantly at nothing, her hands grasp at the sheets of the bed and her toes are curled in pleasure. Her nipples are leaking a lot of milk and her ass is pleasantly spasmming around your intruding mass, her little cock is steadily dripping precum as your massive cock pushes on her sensitive prostate. The only noise coming from her are the occasional moan, though you can't tell if it's from pain, pleasure, or both.

You cock twitches powerfully as a torrent of precum helps lubricate the boi's ass, letting you slide in and out smoother. Your grunts of exertion and pleasure are occasionally broken by a throaty moan of ecstasy and frustration that you haven't cum yet. The itching is only getting worse, it feels like a feather tickling right behind your urethra, begging for you to cum, the boi's tight hole only infuriate the itch!

You growl in frustration as you slam you hips into Hannah's, abusing the poor boi's hole. Everytime you slam into Hannah she squeaks in pleasure and it's such a cute noise that it spurs your frustration on even more. You almost can't concentrate on the sex, the tickling on your glans is so intense. You feels your eyes twitching, why can't you cum? You can feel the pressure at the base of your dick but it's not traveling up, it's almost as if your dick has set up a roadblock.

You scream in pain and pleasure, the itching is so intense that it almost hurts. Everything's right! Why can't you cum? Hannah's young and tight, your cock is engorged and ready to burst, what's stopping you?

"O-o-oh! Jane, cum in me!"

Your eyes shoot to Hannah's, she has a dopey grin on her face and her piercing green eyes lock on to yours. She runs a hand through your hair and scratches your head with her long nails. Hannah moans like a slut and wiggle her hips.

This bitch is ready to be bred. You plunge into her depths and feel a wave of intense relief wash over you as you cum a tremendous load. Bigger than you've ever cum before. Almost immediately your cum is leaking from her ass as wave after wave of glorious orgasm overtakes you. Your muscles lock up as the shear immensity of your liquid lover pours into Hannah's willing body.

Hannah giggles like a school girl as her stomach distends slightly, from all the semen in her belly and she runs her hands along your forearms. Your eyes roll back into your head as your body ejects your glorious load, the tickling behind you cock head subsides and you fall backwards onto your ass, cock still lodged firmly up Hannah's bottom.

It takes a little effort but eventually, with an audible pop, you cock is freed from the boi's vice-like grip and a torrent of your sperm floods the bed but you don't care. You snuggle up to your lover and drift into a very deep sleep.