Jon saw his skin gain a golden tint. It was slowly softening and turning into lycra spandex as his body reshaped, his hips, waist, ass and tummy becoming curvy and feminine. His chest grew into a pair of breasts as the lycra spandex covered more and more of his skin - or became his skin. His legs became shapely and feminine. His hair vanished under a golden cover. Jon felt something on his face. He touched his face - his hands were still normal skin, as was his face. Only his face was ONLY skin. No eyes, no mouth, no nose. He gasped and could see - and, clearly talk - but he found he had no need to breathe and his face had vanished. She also realized she'd not need to eat, drink or go to the bathroom. The golden lycra tint covered the rest of his body as his dick became a tight pussy - covered with the same golden lycra.
Finally, a riding crop appeared in her hand. She dropped it. The previous one didn't vanish, but a new one appeared.
"Fuck..." - Said Jon. She tried to find a zipper for the clothes, but couldn't.
She got out of her bedroom, wondering whose fantasy she now was.
Her mother looked at her.
"Jon? Is that you??"
"Uhm, yes, mom..." - muttered Jon - "How did you know?"
"The news, sweetie... It seems there's some method to the Sun's madness. Only people over eighteen change. And, well, this isn't the fantasy of anyone here. Blood relatives aren't considered when deciding which is 'closest'... I'm so sorry..." - She hugged her new daughter, blushing herself.
"I... It's okay, mom..." - Said Jon, still dazed.
"I... have something to tell you." - said her mother - "I... I'm thinking of going into the sun. With your father..."