A different sort of swap

"Oh, hey," Holly said taking a break from admiring her slender new look as a new possiblity occured to her, "is it just physical stuff you can swap?"

"Huh? What do you mean, what else is there?"

"Don't be such a boy," she rolled her eyes "I mean like mental stuff, knowledge, skills, personality traits. Could you, I don't know, swap our sexualities?"