Both girls

Indeed, the girls had come downstairs following the smell of breakfast. They were dressed in second-skin hip-huggers and crop tops, displaying strong, flat tummies all the way down to the top of the triangles thlead the eye further down still. One had a fluttershy top in pink and yellow, the other had half the cover of Houses of the Holy left, the bottom half sacrificed to the scissors. Both had her hair wrapped in towel turbans.

"That smells great, Uncle Jack!" The girls undulated into the room, taking two seats with one between them, shuffling plates around till it was clear he was meant to sit between them. Compared to last night, they looked positively cheerful, reaching for food with fingers or fork, each to her own preference.

"Hey, Uncle Jack?" Miss. Zepplin querried, "we smelled..umm... something... last night. We were wondering.. is it common?"