Adam. Sharing was not on his agenda.

"That. is. MY! Dick!," Adam hissed, rage contorting his features. He was only wearing a bra and matching panties; apparently, he had heard the moans and had come running without taking the time to get properly dressed. He stood there, shaking with rage and looking at Katie with unbridled hate in his eyes.

"Oh, hey, Adammmmmmh... Ada," moaned Sarah, hiding her mistake in using Adams real name with a moan, bucking her hips into Katies tits all the while. Katie, meanwhile, was staring at 'Ada'. Did she really just say that? What did she mean? The sisters couldn't possibly... could they?

Adam stomped into the booth and reached for Katie to shove her away from Sarah's dick, but Sarah stopped her with one hand, groping her boob with it. Adam bit his lower lip and whimpered.

"Don't... mmnnh... don't be like that, ah, Ada. There's more than enough of me to go around. Ooooh yeah... Can't you share?" Sarah asked her little slutboy.

Adam didn't want to share, but looking at how happy his sister was ... she was always so good to him. Could he not share her with another girl to make her happy?