As much as she wanted to get to work on building up a tolerance for alcohol, like a normal person with a social life had, Terri was genuinely fearful that she might end up being too drunk to properly enjoy this experience, or worse, that she might black out and forget it entirely. More importantly, a relentlessly lustful Aubrey had already peeled off her shirt, and was in the process of unhooking a bra under considerable strain from her perfect teardrop endowments. With that sort of thing present, Terri couldn't exactly focus on anything else; she set the still-full cup aside and dove right in.
It was like stuffing her face into the most perfectly balanced pair of pillows she'd ever felt. The skin of Aubrey's chest was soft, every inch of it feeling like the most gentle caress as her face pressed deep into the bountiful cleavage. At the same time, though, it wasn't mushy or without resistance. There was firmness behind the wonderful mounds of fat, helping to keep them in a shape around her head that almost seemed to suck her in further, locking Terri into place - not that she had any desire to escape from being so tightly bound up with the girl she was so head over heels in love with.
Hesitantly, a tongue reached out, the tip licking for just a moment at the redhead's skin. As an electric sensation caused her lover to moan, Terri was surprised at how it tasted. Bubblegum. Pretty much the last thing she would've expected, but then, that might have just been an example of her inexperience with such matters. The sweet, sugary sensation brought her tongue pressing into the skin once more, soon followed by her lips and teeth making contact. The familiar taste of the sweetest gum in history caused her to reflexively bite down, trying to chew on the exterior of her lover's breasts; she was worried for a moment that she might hurt Aubrey, but the redhead let out loud moans that seemed to affirm how much she relished in it.
Her adoring bites began to trail up one of Aubrey's breasts, leaving a little trail of slightly red marks all the way up to a nipple that was already rock-hard. There she truly began to clamp down, digging her teeth in and tugging like she was some wild animal attempting to rip the skin straight off. They both collapsed onto a bed as Aubrey thrashed and screamed in ecstacy, hands gripping her head as she basked in the feeling of being so painfully ravised. Terri's own moaning was leaking through her mouth as she moved over to provide the same agonizing attention to the other nipple, both hands firmly grasping and squeezing at those huge mounds of flesh.
Only when the redhead's chest was completely flush with heat did she move back up, crushing her lips back into Aubrey's with a renewed passion. The girl beneath her clawed at Terri's shirt, tearing it to shreds with a force she hadn't realized her lover could exert. As the shirt gave way to tearing apart her bra, something dug into her skin - nails, but sharp, almost like claws scratching at her back. Instinctively, she knew them to be Aubrey's, and this understanding turned what ought to have been painful into something intensely erotic. She cried in pain, silently begging for Aubrey to respond to this show of weakness with more digging; her prayers were answered as the redhead rolled over to straddle her, eagerly ripping through their remaining clothes to leave both girls nude.
Staring up at her partner, though, Terri was equally shocked and aroused by what she saw. The redhead's skin had become... pink. Just like bubblegum, now that she considered it. Her fiery man still trailed down, all the way over a chest that seemed to have gotten even bigger to wide, child-bearing hips that she desperately wanted to bury her head inside of. Nails that had turned black and sharpened to points dug into her arms, pinning Terri to the bed so that she could watch in complete amazement as her lover changed further. From between strandes of her luxurious hair, two nubs were growing, black spots that thickened and hardened into horns that bent back, following closely the curvature of her head before stopping at her ears.
It wasn't until bones and skin began to protrude from Aubrey's back, gradualy forming into bat-like wings, that Terri began to put the pieces together. The vials with the odd labels... one of them had featured a creature like this. A succubus, a demonic woman who subsisted on sexual energy. Something in the punch... it was altering Aubrey, turning her into that sort of unholy being. She would've thought that insane, but she was watching it before her very eyes, after having met a time traveling doppelganger earlier today - was the idea of her crush becoming a sex demon really that outlandish? Was she even opposed to the idea?
No, Terri concluded as a spade-tipped tail sprung forth from Aubrey's back, an unearthly screech affirming the completion of her transformation - she wasn't opposed to it. Because she also recalled the other vials, with their curvy women on the label - it wasn't hard to imagine that it was some sort of concoction to enhance lust and sexual features. That must have been why everyone here was descending into makeouts and orgies, why her chest had felt larger, why she had been temporarily foggy-minded after her sip of the stuff. She'd been under the same effects that had made Aubrey so horny on the dance floor. But the longer she spent with her hot body pressed to Aubrey, the clearer her head seemed to become - she'd only taken enough to become exceedingly lustful, and as the succubus above her fed on that, it was lifting the fog from her mind. Enhancing her mind, even, letting her realize things she couldn't before.
Like the most delicious realization yet, arriving just as that spade tail dove into her quivering folds and forced a blood-curdling scream of delight out of the asian girl. The lust and fog was coming back any time there was a lull in their lovemaking. It would probably do so indefinitely - she could very easily spend the rest of her life as a recharging lustful battery for Aubrey. Forever fed upon in orgasmic joy by this girl she was hopelessly in love with, relishing in a body that had become breathtaking, never once feeling herself lacking for companionship or affection as she became Aubrey's plaything. On the other hand... the full cup was right there. She could easily drink it herself, embrace the same changes, and become an holy sexual being just like her lover. Both possibilities further soaked her already-flooded loins.