"I want to put some more breasts on. Is that okay?"
"Sure, Joey," replied Naomi, "but how about making us share, so I take one side and Sarah the other?"
"Great idea! Let's see..."
I aimed the Black Breastinator at my left butt cheek, feeling waves of pleasure as I held it until it reached the size of a basketball, then did the same with the other cheek.
"Whoa," said Naomi, "Two places... Doubled pleasuuuureeee..."
But what next? Maybe... replacing my dick with a breast? Pissing milk would be so fun! Or micro-nipples? Pleasure at every touch! Although "normal" breasts may be necessary to balance the butt, so practically, those might be needed.