Licking her arse

"Since you're so keen on using your tongue," the girl said demurely, "why don't you try a little further back..."

Emma's instinct was to strongly refuse, but she felt the Other in her head, exerting just enough pressure to keep her there and submissive. She looked up at the smiling sales girl and nodded obediently.

The girl grinned happily at Emma's acquiescence. She turned around and got down on all fours in front of Emma's face, offering her arsehole to Emma's mouth.

Emma stared at the offered anus, torn between her need to get this over with and her shock at the notion of licking someone's arse. "Come on you slut," the sales girl said. "Lick my arse."

"I'm sorry," Emma said. She couldn't do it, she knew now.

"You're so fucking useless," said the Other in Emma's head scornfully. "You can't do anything on your own." Emma suddenly felt her face thrust forwards, pressed eagerly between the offered buttocks, and her tongue snaked out to squirm on the girl's arsehole.

"Oohhh that's it," the sales girl said. "Get your tongue right in there."

With no control of herself, Emma moaned, her face buried in the girl's bottom, tongue-kissing the arsehole with as much passion and enthusiasm as any kiss of her life.

While Emma licked her, the sales girl furiously fingered herself, gasping in pleasure and delight at Emma's worship. That worship seemed to go on interminably, making Emma's tongue ache with the effort that she was putting into sliding it inside the arsehole. Finally the girl said, "Stop! Ooohh I'm so close to cumming."