You already have

You hold Alice in the tight hug for a few minutes, subtly breathing into her ear all the while. When you finally do pull away, you note with satisfaction Alice's exotic face is noticeably flushed. Her almond-shaped eyes are slightly more dilated than they should be, given the lighting, and the light coffee skin of her cheeks carries more pink than usual. Her breathing is steady and deep; she has been breathing in the pheromones from your soaked pussy ever since you stepped out of her bathroom. Your breath also carries trace amounts of the Lilith Strain; breath that has been steadily flowing into her ear for much too long to have no effect.

"Wh-what's happening?" Alice asks dreamily.

You don't answer her with words. Instead, you slide your tongue between her slightly parted lips and pull her close once again. Alice, her brain already muddled by your pheromones, moans into your mouth and returns the kiss with fervor. In seconds you have flipped her back onto her pillow and driving your tongue deep, swirling your infected saliva around her moaning mouth. When you finally break the kiss, Alice mewls in disappointment, her panting lips connected to yours by a strand of black saliva. You slowly lick your lips, allowing the corrupted fluid to drop onto your friend's athletic top.

"Mmm, looks like your shirt is all messed up! Let me help you," you purr huskily into her ear, as you slide the garment over her head. You slide down her neck, leaving little wet kisses as you move down Alice's quivering body. You growl with satisfaction as you kiss your way to her sports bra and feel her hardened buds poking into your lips and hand. Alice's breasts were even smaller than yours when you still fit your B-cup bra without a glamour. Barely even a B-cup, Alice sometimes had to wear an A. Alice moans through shaky breaths as you bite her nipples through the garment, swapping between her small tits and massaging the tender underside with light fingertips. Alice pushes you off her and you look up at her cute face. She is a mess. Her curly hair is disheveled and her lust-lidded eyes are so dilated, you can barely see her irises. Her cheeks are noticeably flushed red and her little tongue has slipped out from between her quivering lips. She smiles slightly, closing her eyes, and pulls her bra off, throwing it across the room. You flash her a lascivious grin and dive back onto her now-bare tits, relishing your friend's cute moans. Now you reach your left hand underneath the waistband of her running shorts and panties and squeeze her toned ass, earning another rapturous moan from Alice. You slide off her shorts and allow Alice to pull your shirt off. In short order, your bra is unclasped and joins Alice's somewhere on the floor. You lick down the front of your friend's workout panties and now it is your turn to moan as you taste the wetness seeping thorough, Alice is already bearing signs of infection. Her juices are sweet and stickier than they should be. It is time to stop the foreplay.

You run your hands up her trembling thighs and grip Alice's hips. In one powerful motion you tear the panties apart. Finally you gaze into your friend's little pussy. It is absolutely soaked, the wetness is flecked with black as the infection burns through her. You give your shorts and own panties a similar treatment and join Alice in the nude. Allowing no time for your friend to look at your beautiful (if deceptively average form), you dive between her legs and run your tongue up her soaked lips. Alice is too lost in the ecstasy of the virus and your increasingly frantic ministrations to notice how your tongue might be a little too nimble or feel your breasts blossoming against her legs. She just moans as orgasm after orgasm claims her, yet offering no real relief. You know just the thing to make your sexy friend cum her soul into your hungry mouth.