"Crystal?" Sue asked.
"Oh hey Sue! Hiiiiii Frankie!"
"Not that I mind, but what's happened here with my brother?"
"Oh he just walked OOH! past and noticed me playing in Franklin's room. He' such a cutie that I decided to bring him in on our games!"
Franklin stared at his uncle, submissively gorging himself on Crystal's breast milk. "How did Uncle Johnny get like this?"
"Oh right! Frankie, the craziest thing happened! I was getting super horny in here, playing with myself and started fantasizing about lingerie when I was suddenly wearing it!" She gestured with one had to the pile of black lacy underthings she'd discarded
to allow her boywhore easier access. "Then when Johnny here showed up I could change him however I wanted! I dunno why, but it's like I got a copy of your powers, Frankie baby! "
"Mmm, my brother makes quite an attractive sight, I like what you've done with him." Purred Sue.
"Mom, why's Crystal got my powers?" asked Franklin.
"I don't know" said Sue "but I have a suspicion..." She looked at the walls of Franklin's room, and the colour, a light blue. Sue pressed with her mind, in almost the same way she'd project a forcefield, though with a different intent.
The colour of the walls shifted to a dark red.
"Whoa, mom, what?" stuttered Franklin.
"Interesting" replied Sue. "It looks like I've got a copy as well." Franklin, I think your powers gave become sexually transmitted."
"Does that mean Uncle Johnny has them too if he's been fucking Aunt Crystal?" Asked Franklin, dazed by the idea.
"Ooh! let's find out!" chirped Crystal, who was busy stroking Johnny's foot long member. "Whore, can you try to use Franklin's powers?"
"If you want me to, Auntie." replied Johnny.
"So much more polite" Said Sue, "Definitely like this new Johnny Storm. How about you try to change my clothes, Johnny? Give me something slutty to wear."
Johnny looked questioningly at Crystal "Go ahead, Johnny" she encouraged him.
Johnny focused on Sue's Uniform, and for a few seconds, the others in the room watched, interested to see the outcome. Though nothing happened. "Sorry, Auntie, I don't seem to be able to do the things you, Franklin and my darling sister can..."
He looked slightly upset, Crystal gave him a peck on the cheek "Aww, don't worry little Whore, you're still precious." she started to stroke his dick again, and he moaned for her.
"So only me and Crystal." Said Sue.
"Mom, is it because of my y'know. My cum maybe?"
"Seems likely doesn't it? maybe it's only a direct contagion, it can't be passed on by people who've contracted it by you. But that's a good thing isn't it. We don't want everybody to do what we can do."
"no" Said Franklin. He was reluctant to share his power in the first place.
"We'll have your father run some tests to see what's going on with your abilities when he's completely converted, but how about we pass the time in our own way until then?" Said his mother, "Now do you want to dress me up, or shall I?"