Yes

After coming as hard as he had he didn't think he had another round in him. Seeing his sister, Lauren, standing before showing off her glistening pink entrance was enough for his man meat to stop softening and immediately harden back up.

There was a brief mental war between something resembling his conscious and his libido. This was still his sister, ebonized or not, so was it really right to have sex with her? His libido screamed back at him that this wasn't uncommon, and that one of the bits of information that Dr. Lombardi's study had said that **** didn't result in deformities amongst white male ebonized female. His conscious said that particular theory hadn't had enough time to be verified.

All of this internal arguing proved fruitless when a third part of his brain told his mouth to say "yes".

With a grin and a shift she slammed down on his dick straddling him cowgirl style. In an instant his world became hot, wet, and tight. He let out a breathless "Jesus Christ" at the sensation, again outside of the occasional groping from more aggressive strains of ebonized women he'd never gone farther than making out.

"Hmmm," for her part, Lauren hummed and let out soft moans. "Dayum bro, dick game on point!" She rolled her hips gently trying to get used to his length and girth, bracing herself by placing her hands on his chest. "Ah wants to do stuff with yuh, but yous too big! Gotta take my time!" She rose up a few inches, tortuously slow, and then sank back down just as slowly. She repeated this agonizing motion a few more times, smiling down at him smugly, leaving his cock half buried inside her. "Jus gon' lay there all night, bro? Let yo sis do all da work?"

That snapped something inside of Jacob.

Over come by a sudden animal instinct he growled out a low "No."

In one motion he sat up, snaked an arm around her waist gripping at a thick thigh and sank his teeth into the juncture her neck met her shoulder she let out a surprised gasp that shifted into a moan as he then pulled her down on his length at the same he slammed his hips up!

Satisfied with the breathy moans Lauren made as a result of this he repeated this hard thrust a few more times feeling the ripple travel through her thighs he growled again and pulled at her. She yelped in surprise as he used his hold on her to flip their positions and pin her under him. Using his weight and leverage he drove into and she made an achingly beautiful, breathless noise of pleasure. He wanted more of that!

He pulled away from her neck satisfied with the hicky he left there and looked her in the eyes. She gazed back at him with adoration and lust mouth slightly agape, gasping from his brutal **** on her womanhood. He braced his arms on either side of her head and he closed the distance. Their lips and tongues met in a sloppy duel of spit and desire. They stayed like that until the need for breath **** them to separate.

One of the things Jacob was learning about his sister was that she wasn't a screamer, she was quiet she made cute little grunts, moans, whines and squeals. Though that might have more to do with the relentless pace he was setting, it not allowing her to draw much more than a breath before his next thrust would drive it out of her.

"Oh shit- ah'm" was as a far as she got before he felt a full body shudder run through her and her eyes rolled back. She clamped down hard on him **** for his his own orgasm and he obliged. Slamming as deep as he could he felt his length pulse once, twice, and one last time as he unloaded inside her, any thoughts as to the immorality of **** long gone.

His arms felt weak, but they kept him above her as he stared into her eyes. They didn't say anything at that point just gasping and wheezing and panting from their exertions.

Then she grinned smugly and challengingly up at him, "Dat all yuh gots, bro?"

His dick didn't have time to grow soft as he swept back down much to her delight. It would be a couple hours more before they finally sated their lust for each other.