Yet the only thing on Adam's mind is a big cock. Specifically his sister's huge girlcock.

"I just wanted a bigger cock..."

"Oh, i know where you can find such a thing..."

Now only a feet away from Adam, Sarah continued to stroke her enormous and fully hardened girlcock, that towered almost menacing above her brother's body. Her brothers altered, now all female body that turned her on so much.

Despite Adam's own complete transformation that happened only moments ago, he spent no time to think about or to explore his new body. His gaze was stuck to his sister glorious rod. The memories of the pleasure he had received when worshiping it were still fresh in his mind. The taste, the feeling, the many strong orgasms it had bestowed upon him. His eyes followed every motion of Sarah's in comparison tiny hands, how they graced the angry veins of her steel hard and beautiful girlcock, how they rubbed all over her entire length.

Thanks to Sarah's arousal more than generous amounts of precum had started to flow down the length of her massive member already, and were spread around further by the motions of her hands. The by now familiar, yet still arousing and very much intoxicating scent reached Adam. The scent of his futanari sister's juices. The scent produced by her huge fuckstick.

His eyes only graced the outlines of Sarah's other bewitching features. Her enticing hips, her slim waist, her enchantingly swaying remarkable breasts. And had Adam taken the time to check out his own body, he would have known that compared to his sister's alluring curves, his own now all womanly curves were only slightly less pronounced and definitely equally sexy as hell, leaving nothing to be wanting. Quite the contrary. Only in direct comparison to the perfection that was his dickgirl sister could anyone say otherwise. But Adam only had eyes for Sarah, and specifically her gigantic erection. He only had eyes for the display of more than a feet of intimidating yet irresistible futa meat.

"Your body has just been completely transformed, yet all you can think of is big cock? You want to have a big cock? This is it."

Sarah giggled, as she moved in the final step and guided the tip of her member towards Adam's mouth, which was already open by instinct, already waiting in anticipation of the pleasure that was bound to come.

The blonde girl was only slightly astonished, and mainly pleased and excited over the sexual prowess of her Growth X empowered body. The pills were the best thing that could have happened to her. All these last weeks, were she had dreamed of having a cock of her own. How powerful it would feel. How awesome it would be to make others submit to her, men and women alike. It had been only that, a dream, a fantasy, that never had a chance of ever coming true. But here she was. Transformed into a dickgirl. Stroking her massive erection. This was more than a dream come true. And to have her own brother changed into an equally willing as sexy female was a nice added bonus.

"I believe you are quite familiar with it already. Why don't you give it another lick."

Both siblings shuddered and moaned in that moment, when Adam extended his tongue to taste the tip of his sisters cock. A rush of adrenaline and pleasure spreading within his body, as he eagerly lapped and savored the taste of Sarah's intoxicating precum.