Turn Marina around and lick her ass

Man, that thick ass is sure tempting. And you wonder if you could pleasure Marina that way...? You prompt her to turn around, then push up her dress a little higher. Spreading her thick ass open, you can see her anus. She has a glorious, smooth, clean backside.

You drop a couple of reverent kisses on her cheeks, then lick a trail up the crack. Marina gasps. "Oh, that's fucking dirty," she says, but she seems excited rather than disgusted. You repeat the lick, then start to get more focused, swirling your tongue around the general area of her rear entrance. Marina quietly chants, "Shit, shit, shit." After a couple minutes of teasing, you lick her asshole in earnest, gently prodding and lapping it as it clenches subtly. "Oh...oh..." Marina almost squeaks. "What...nobody's ever done that before."

You push forward and bury your face between her cheeks briefly, actually kissing her hole, and she groans her approval.