“Mistress, please don’t think I…”“Don’t worry your pretty little head, dear.” I gave her a too-cheery smile then exited towards the gues... wing of the house, leaving a very worried slut in my wake.A few minutes later, I entered the first guest room to find Rebecca dilgently dusting the dressing table.“Ah, Rebecca! My favourite slave!”“Yes mistress?” she looked up, a little nervous.“I have a small favour to request.”“Anything, mistress.” I could see her preparing herself, expecting the. Even at forty her body was still in incredible shape, a narrow waist, wide hips and a pair of gorgeous big firm breasts that she loved to show off with plunging necklines. There was barely a trace of hair in her long auburn tresses and a spark of youthful fun in her bright blue eyes. Indeed, if you had not been aware that she was a mother in her forties, you could easily have pegged her for a woman over a decade younger.Her fun, friendly and, frankly, flirty manner did little to discourage. She slid forward, indicating I should lick her ass. I did so, sticking my tongue inside. She adjusted, to get my tongue farther into her asshole. It worked, and another inch of my tongue went inside her butt. It seemed that she was testing just how far I was willing to go.Challenge accepted. I wrapped my lips around her asshole, and slid my tongue in and out rapidly, before applying vacuum pressure. I slid my tongue back in her ass again. She began bouncing up and down on my mouth, reveling in. By the time we have finished looking at the bathroom, you have me on the bed undressing us both rather quickly. My diaper is thrown open you are between my legs and sliding your glans up and down my seeping silt to wet and lubricate yourself. With one hard thrust, you are in me, as your fingers find their way to my clit to rub it. My one hand is squeezing your balls, as my other hand’s fingers are searching and finding your asshole. There is enough of my juices flowing now to coat my fingers.