They made it to his room and he deposited his legless sister on the bed. She pushed aside his pillows and propped herself against the headboard. Dan had to take a small running start to get himself up. He then spread his legs to face her. Kat could see moisture leaking from her cunt. She was doing a poor job hiding her arousal. She may not have any control over the muscles, but she still felt everything. The feeling of her strange new breasts against her own ass, the dripping pussy... She was turned on and really wanted to play with herself.
Dan could sense her discomfort and tried to diffuse the situation. “So what do we do now?”
“I need to teach you... A spell that can join us... But...” Kat groaned.
“There’s no way I’ll be able to concentrate on anything... So long as you’re so damn wet...”
Dan tried to deny the way his body felt. He didn’t want to give into his sister’s sexual needs.
“It’s... It’s just sweat... I’m fine.” He countered.
Kat knew better and giggled, “Is that so? What if I do this?”
With one quick motion, she unbuttoned her shirt. Dan’s pussy gaped open as he looked at her torso. Her original pair of breasts were still held in a bra, but below were the three new rows that he had accidentally given her with a spell. The sight turned him on even more. Kat let out a moan when she felt it.
She undid her bra and let it fall. Dan marveled at the eight naked breasts on her chest. Each row slightly smaller than the set above.
With a shaky voice Kat said, “ooh.... Fuck Dan... I’m not sure I’ve ever felt so wet. You're driving me crazy.”
“... I need to calm you down or I’m going to lose my mind.”
Dan was now too aroused to object. Kat pushed herself forward, then dropped her face down to meet his lips. She began to lick their clit.
Between each taste she let out excited moans. Dan felt it each time her dimpled tongue tugged on his clit and hood. If he still had a dick, this would far surpass anything he’d ever tried on his own. His legs shook as Kat inserted her tongue into his vaginal opening. He sucked on it and continued to dribble fluids. His sister was so caught up in the moment that she drank it down without hesitation.
The surreal cunnilingus session didn’t last long. The separate halves of his sister’s body were already so close to their breaking point that Dan couldn’t stop himself when hot cum began to drool onto his labia. Kat licked it clean and pushed herself back into a seated position. Dan couldn’t look away. He had a perfect view of his sister’s eight breasted torso as she breathed.
He watched them rise and fall and reached one more orgasm, sending them both into another round of euphoria. If he had kept his pussy aimed at her, he may very well have had another. The thought of his hands on those breasts kept him hungry for her fingers or tongue but he forced himself to stop. It felt wrong to stare at his sister like that. With weak legs, he pushed himself into a position against the wall next to his bed. The new view was of his bedroom door on the opposite side of the room...