Yes

"CUM!" he cried. "CUM!"

Jemma froze mid-thrust, a rictus taking hold of her bdy as she spasmed and let ut a high-pitched whine. Beside them, Ronnie groaned and shuddered, having taken the command as her own. And even Josh was apparently responding to his own voice, or perhaps from the thorough fucking, as he also shot his wad deep into his sister.

Jemma continued to hold position, hands behind her head, eyes unfocused, drool spanning from lip to boob. Josh panted, trying to think of more words.

"Relax" he mamaged. "Relax, Jemma. Lay down on me."

His exhausted sister collapsed, letting out a grateful whimper. Josh sighed, delighted to have her sweaty rack pressed against him, and patted her as as his dick slowly deflated inside her.

"That was..that was nice," he said after a few minutes of the three of them breathing deeply. "You've got such a clever pussy, Jemma."

Jemma chuckled and the laugh made her pussy clench and squelched out their mingled juices to run down his inner thighs.

"Oh fuck!" he said, a thought dawning on him. "Are you two on birth control?"

"I am," Jemma confirmed.

"I don't have to be," Ronnie said. "Your father told me not to have more kids after you. So I don't. I couldn't. Unless you told me to, I guess. If you wanted me to, I guess I'd trust you to do what's best for me."

Josh reeled at the possibility of knocking up his mother and sister. But he'd only even known about his own father for a couple hours. Becoming a father himself should require a little bit more deliberation. He still wasn't sure how he felt about being abandoned.

"Neither of you should get pregnant from my sperm unless I tell you to," he told them.

"OK," they agreed.

Josh reached out with the hand that wasn't squeezing Jemma's ass and stroked his mother's hair. The family was just the right size for now.

"Oh crap," Ronnie said. "I'm gonna be late for work."

"I'm already late for class," Jemma admitted, not really caring much, still following his command to relax.

"I can just call your boss and your professors and tell them you to give you the day off," Josh said. "Hell, I could get Mom a raise and Jemma all A's."

"Not over the phone," Ronnie said.

"Huh?" Josh said.

"Your voice doesn't work over the phone, radio, tv or through recordings," his mother explained. "Probably not through the internet either, though streaming wasn't really a thing when I knew your father. You have to talk to people directly."

"Oh," Josh said. He really shouldn't go assuming this power meant he could do whatever he wanted. There were bound to be limits. Hell, if what he understood from his mother's story was correct, he might have lots of half brothers out there with the same power. What would he do if he met one? Or his father?

But that was a theoretical problem. His mom getting fired was a more immediate problem and he didn't want to ruin his sister's academic dreams. He was feeling very affectionate towards both of them in the postcoital glow.

"So should we go to mom's office or Jemma's campus first?" he asked.