She plunged the full length of her tongue deeply into Lily's tight cunt-hole.
"Yes!" Lily gasped with pleasure.
Then Franny took her tongue out of Lily's cunt-hole and she stiffened her middle finger, ramming it as deep as she could get it into Lily's little pussy.
"Ohhh, you sexy bitch!" Lily moaned. She tensed her inner cunt-muscles and lewdly squeezed Franny's finger inside her.
Franny moaned. She had never had her finger inside anyone's cunt before. It felt great. She quickly placed three fingers inside Lily's fuckhole and twisted them, making the older girl writher violently on the bed.
"Tight little pussy! I love it!" Franny groaned, shoving her three fingers in and out of Lily's clasping pussy-hole. She thrust them into her as deep as possible, not stopping until she felt her finger-tips striking the back wall of Lily's pussy.
"Gotta come! Gotta come!" Lily cried, her face turning red.
Franny continued to fuck her three stiff fingers in and out of Lily's squeezing pussyhole. At the same time, she lowered her head and began to lick and suck on Lily's hard clit.
Lily came very hard. Her hips bucked up and down wildly. Her face contorted. Her inner pussy spasmed and gripped Franny's fingers so hard that the younger girl cried out in protest.
Franny continued to suck and lick her sister's clit while the older girl came. She wrapped her lips around her stiff clit and drew in her cheeks as she sucked. She loved the way it felt as Lily's orgasming pussy clutched her fingers hard. She could feel that all three of her fingers were wet and slippery with pussy-juice, allowing them to slide in and out of her quivering pussy easily.
Finally, Lily stopped coming. With a little groan, Franny pulled her lips and tongue from her sister's pussy and pulled her three sticky fingers out of her drooling cunt-hole.
Lily collapsed back onto the bed. Her big tits heaved up and down as she struggled to catch her breath. Her entire body was slick with sweat. She glanced down as Franny raised her face between her legs and laughed.