Instead of trying to escape directly, you suddenly dart your tongue out, pressing the rough appendage into the rat's tight tailhole. She lets out a squeak of surprise that trails off into a long, low moan. Like you suspected, she keeps herself clean, though you do taste her slightly bitter anal sweat. You keep it up, tongue wriggling and probing, as your hands rub at her thighs. As you lick, her hand slowly comes down, brushing over her slit...and she shivers. Hopefully, once she orgasms, it'll weaken her enough for you to escape. If not...you're ass-food.

You expertly eat that yummy ass, tongue darting in and out, for a few minutes, the rat's moans increasing in volume...Until you feel her tense, then relax. Her hand is now quite soaked, and a good amount of femcum drizzles onto your neck...You try to roll away...