Katie lets Jennifer rim her

John sighed. "Girls, we aren't here to play tag. Katie, don't be a spoilsport. Let Jenn rim you."

Katie felt her movements slow and a feeling of goodwill wash over her. She smiled as Jenn caught her, yanked her tiny blue panties off, and pushed her onto her hands and knees on the bed. The pixie-like black haired girl moved happily to let Jenn climb on behind her.

Jenn stuck her face into her friend's cute bum and stuck out her tongue. She hesitantly licked her friend's virgin asshole.

Sarah clapped. "Come on, Jenn. It doesn't count if you aren't enthusiastic."

Remembering that it was going to get worse if she forfeit, Jenn thrust her tongue out and swirled it around her friend's ass. She pushed her face deeper in and started probing the tight folds of Katie's sphincter with her tongue.

John felt himself get hard as he watched two his sister's hottest friends rim each other right in front of him. He leaned forward in interest.

"Katie, how deep would you say Jenn's tongue is in your ass?"

Katie blushed. "I dunno. Not very."

"Jenn, I know you have a longer tongue than that. Get a full inch of your tongue in Katie's ass five times and you'll be done."

Sarah looked at her brother oddly, wondering if he had ever gotten a blowjob from her hated friend Jenn. That bitch. Her brother was hers alone.

Jenn grunted, unladylike, and grabbed Katie's bare thighs with both hands to pull her face deeper into the crack of Katie's ass. She pushed hard with the pink tip of her tongue and, as Katie's sphincter yielded and relaxed, made it all the way into the virginal darkness of Katie's rectum.

Katie cooed in ecstacy.

Jenn pulled her tongue out, swirled it around Katie's sphincter, and pushed it in a full inch into the girl's ass.

And again.

And again.

And again.

And again.

Still bottomless, Katie collapsed on Sarah's bed.

Finally, Jenn felt free to pull her face away. She looked at John and his sister Sarah and swallowed her saliva with determination.

"Jennifer, it's your turn to dare someone," John answered.

"I dare...