Lexa was nearly consumed by lust, rocking her hips down at the blob like an animal in the heat. "Ah-amazing... ♥" The black-haired girl squeezed her breasts. She began to give a stray tentacle a titfuck. The tentacle rested between her breasts and her warm hands. "C-change positions! Fuck me on all fours!" The girl demanded of the monster. Fufufu... how sad it must be to be a monster forced to have sex with a human.

Such cheek! The horror of losing her virginity replaced by insatiable lust, Lexa seems to be consumed with the need to be sated. With a yank, the blob pulls the deflowered student onto the ground, thumping face first, dirt clinging to her sweaty form , ass raised, twin phalli rising and inserting into her abused body again, the goo between her tits pushing intently along the supple flesh...

The petite girl wagged her ass at the monster, tempting him to penetrate her tight folds. Lexa didn't even care if dirt pressed against her cheek. She reached behind with her hands and opened her nether folds. "Fuck me ♪" The girl commanded in a low, sexual tone. Immediately the black-haired girl was rewarded. The black phallus entered her moist folds once more. She clamped onto the appendage to allow the blob monster to feel every curve of her womanhood. "Aaahh... yes, harder, harder!" Lexa nearly begged the tentacle monster. The girl leaned her head down so she could lick the head of the tentacle that was titfucking her.

Lexa was certainly working this blob to the limit, those tendrils stretching her, the thickest one banging against her cervix, teasing the final barrier as the thin membrane and bone between pussy and ass is massaged and stretched, tentacle forced into her mouth, momentarily silencing such foul language. The student was in quite the unladylike position, temple pressed to the ground, the black mass forming on her back, guiding its feelers, seeking the right touches to spur a mind-blowing orgasm.

Lexa didn't care how unwomanly the position was. She had... strangely enjoyed the domination and withered away, allowing the blob to do as it desired. Her small, petite body was being destroyed by the tentacles. They pushed through every hole of her heated body. Her hot tongue submissively coated the tentacle in her womanly saliva.

Lexa's vision began to fade out a bit. I... can't take it anymore... Switch with me, Alexis... Before the blob would be able to notice, the cute black-haired girl was gone and replaced by a rather taller and busty blonde girl. Vibrant golden locks flooded down her hair. Beautiful violet eyes opened. Her ass and breasts were much larger than the girl just moments ago.

"Nghh?!" Alexis groaned into the tentacle.

Lexa didn't care how unwomanly the position was. She had... strangely enjoyed the domination and withered away, allowing the blob to do as it desired. Her small, petite body was being destroyed by the tentacles. They pushed through every hole of her heated body. Her hot tongue submissively coated the tentacle in her womanly saliva.

Lexa's vision began to fade out a bit. I... can't take it anymore... Switch with me, Alexis... Before the blob would be able to notice, the cute black-haired girl was gone and replaced by a rather taller and busty blonde girl. Vibrant golden locks flooded down her hair. Beautiful violet eyes opened. Her ass and breasts were much larger than the girl just moments ago.

"Nghh?!" Alexis groaned into the tentacle.

Cangly certainly wasn't expecting that dramatic a change when it brought her to peak. Like a car shifting out of clutch, the tentacles fumbled, yanking the now blonde girl onto her head, tentacle yanking out of her mouth, styles talks blinking in surprise. Tentacles still moved inside of the girl, but considering the sudden physical transformation, they almost seemed ill-fit inside her pussy, perhaps too big.

The surprised blonde began to squirm. She felt the tentacles cover her busty body, exploring every nook and cranny they could. Her pussy was tighter, and still not used to the tentacles inside of her. The monster would initially have troubles thrusting into her. At the same time, her body shook. Nipples soon grew hard. Alexis' fingers dug into the dirt below her. "S-stop! Your tentacle-cock's too big!" She pleaded.

The cock had been adjusted for Lexa's pussy, but at the transformation, all the measurements went askew. This new blonde girl was yanked off the ground, thrown unceremoniously onto the black blob bush bulk, straddling the readjusting tendrils as the blob sputtered and stammered.

"Wh-what? Wait...who...how...what are you...oh..."

The eyes drew to the large, heaving breasts, just watching them bounce. Such a metamorphosis! However did it manage THAT? More research was in order, but first, orgasm...

Alexis yelped as she was changed into a woman-on-top position, with her legs spread wide apart for the monster. Her soft, womanly thighs pressed down on the blob's shape. The blonde girl tried to slap away the tentacles coming towards her breasts. "N-noo! Stop it!" She protested. Alexis wasn't willing to answer the monster's pleas. Instead, she tried her best to escape the monster's grasp by twisting her hips from side to side. However, it served only to pleasure it, by rubbing its tentacle appendage against her hot, soft pussy.

The blob did its best to recalibrate, snatching the girl's flailing hands, tendrils snatching wrists , pulling them into the gelatin consistence she straddled. Naked, moaning, and writhing, this Alexis seemed far more pliant, but still her data seemed consistent with Lexa's. Breasts were larger though, and certainly not the same sensitive spots inside . It was a two-for-one! How fortunate for science indeed!

Alexis gasped for air, swinging her arms wildly. "L-Lexa! W-why?!" Her voice sounded like she was almost in tears as the blob violated her. She brought her hands up to cover her face while the appendage rocked inside of her wet pussy. Her luscious thighs, bigger than Lexa's, tightly squeezed onto the monster in fear that she would be thrown off it.

Alexis would face the full brunt of the blob's gush, the nanite ichor flooding her womb, dissolving, dissipating like steam inside of her body, every nerve ending excited within that body, phallus still deep, rooting inside , as if looking for the switch that turns weeping bosomed blonde back into grouchy foul mouthed brunette. Mind conditioning perhaps? Key phrase? The girl was gently placed on her back, blob still rooting between her legs to finish up...

Alexis' thighs twitched as she felt something erupting inside of her womb- a strange, unfamiliar feeling. She rested her hands against the blob as her busty body continued to rock on top of the blob. Her breasts bounced each time the thing thrust inside of her. The blob would have no luck finding a 'switch' to change the blonde back, and would have to deal with her for the time being. They changed position. The girl's legs were hoisted up towards the sky while the blob continued ravaging her. Her tight, pink insides squeezed the slime, as if begging for it to cum. She looked up at the blob, her face filled with despair... and lust. "S-stop... you're being too rough!" She cried out.

"Yeah, well I never had a chick change from a brunette to a blonde before when I was tagging them...what do you expect?" Alexis feels the tentacle inside her get nubbly, twisting, thrusting slower and slower, as if cooling down. Poor tentacles were TIRED from working in Lexa and the calibration knocked off with the sudden change left the alien into a confused muddle...