"What are you doing down there Jen," Screamed Valerie.
"I was your panties but I transformed back to normal." Answered Jen.
"Well if you like it so much down there, why don't you become my pussy."
Jen started to feel a bit tingly. She had a sudden urge to crawl into her sister's pussy. She started by sticking her hand in first. Her sister started to moan. Jen then started to melt into her sister's pussy. After one minute, Jen was gone and Valerie's pussy had a bit of a tingle about it.