Sarah deep-throats her brother's cock

"Fuck, your throat feels so good, i feel almost like cumming again! Now how about you move that pretty head of yours, and show me what a real blowjob looks like."

"I will help her!" Amy excitedly placed her hands on top of Sarah's head again. "You heard the man, Sarah, get moving!"

And to the surprise to all participants, and thanks to her throat being lubed with "Growth X"-powered sperm, Sarah quickly complied and did as she was told.

"Yes, oh, just like that! Ohhh. Yeaaah..."

With the help of Amy, Sarah's head had began to bump up and down, taking more and more of her brother's huge cock. Amy's eyes were transfixed on what was happening right in front of her, she couldn't believe how easily her best friend was suddenly taking Adam's monster shaft. She even became a little jealous, that it wasn't her who's throat was filled to the brim.

"Aaaah, keep going, i'm almost there..."

No more gagging, no more breathing issues, just slurping, up, and down. Sarah herself was incredibly turned on as well, and since Amy did an admirable job at helping her, Sarah's own hands quickly found the way to her own pussy, which was already overflowing with wetness.

Without respite her head continued to bob up and down, until she had taken all of it, until her face was pushed into her brother's crotch and when she had deep-throated Adam's cock balls deep, Amy's hands held her face there.

"Fuuuuuck." The tightness and friction on the entire lengths of his shaft was finally enough for Adam, and he came yet again.

Sarah could feel his cock pulsing, sending one spurt of sperm after another down her throat, pumping it directly into her stomach - pumping it full of "Growth X"-powered sperm. And at the same time Sarah's own efforts were equally rewarded, because she had fingered herself to another orgasm as well. Her body spasmed, and with her mouth stuffed with cock-meat and thus unable to cry out in ecstasy, a very loud humming noise reverberated from her throat, which in turn further enhanced Adam's pleasure.

When Sarah came down from her high, her brother's climax was finished as well. She could not only feel her stomach incredibly full, but her brother's eleven inch thick shaft was still lodged inside her, and marvelously she could feel that is was also still fully erect. She didn't understand how that was possible, but also smiled inwardly that her brother was such a stud. She placed her hands on Adam's legs and happily continued, moving her head up and down, up and down again, again and again...