So, finally, inexorably, she was forced to tilt her head back just a bit to ease the collar’s pressure on her throat and let a breath get through. A... she did so, the micro-switch was released and the customized double vibrator jumped to life. She let out a gag-muffled squeal as it started its dance inside her, took another quick breath, and leaned forward into the collar again to shut it off. But it didn’t shut off! Frantically, she tilted her head forward and back, almost the only visible. “FUCK ME!” Stacy begs as Luke slides his cock back down her throat again laughing as he spanks her left ass cheek. In slow circular motions he massages her ass before spanking her hard. Luke slams his cock down Stacy’s throat as his right hand reigns down blows on her tight ass. He holds her head down with his left hand as he continues his assault on her ass. He can hear her muffled screams and crams even more of his cock down her throat. By this time her ass is bright red and her juices are. Steve had switched on the TV, taken out two beer tins from the fridge, and was serving chicken. We both sat, in front of the TV, down on the floor, leaning to sofa. I sat, with my legs spread, and he snuggled in between my legs, pressing his ass to my crotch. We drank beer, ate chicken, fed each other chicken, and biriyani. He went up and got two more cans of beer when the first couple finished. We kissed, I nuzzled his neck, he pressed my semi hard dick, we finished our eating, watching some. Her curiosity finally got the best of her and she smelled the pre-cum before actually getting a taste of it. The fifteen-year-old loved the tangy taste of her doggy's cum. And now she wanted to go even further.Without any hesitation or instructions from her Aunt, DJ turned herself around, pulling her pussy away from Comet's licking tongue, and got under her pet. Just a few inches above her head raged his ten inch cock. She could see droplets of more pre-cum building at its tip, and wanting to.