She's not particularly interested

"Uhh," said Ultimagirl, "I'm not sure. I mean, I'm totally up for fucking him, but... I don't want to have his baby."

"Why not!?!" said Ultimamom, "I mean, after all, he's already given me your half-sibling! If you bear him a child, we'll have him completely! Ultraboy will be Ultimaboy now and forever, the corrupted son of that bitch of a mother of his! We could rule not only this city, but this country... this world! We'd become the new royalty!"

"I... just.... don't want..."

It was then that Ultimamom soared upwards, leaving her exhausted and corrupted super-lover in bed. In a blink of an eye, she had her **** daughter by her neck.

"Well," she said, "If you won't let yourself be bred... perhaps it shouldn't be up to you."