Clair's unprepared ass

Lost in the lusty fantasy, Joe's hands grabbed Clair's full, red ass cheeks and spread them open. Her slit was deep pink and glistening, but his eyes strayed to the tight, dark ring of muscle above it. A thick wad of spit splatted onto it, dripping down the crack.

Even as Joe's positioned his cock, Clair didn't realise what was happening - she'd never let Joe fill her ass, and her earlier words during their fantasy were long forgotten. She rested in post-orgasmic shock, her body weak and mind blank. As the cock head pushed against the tight ring, reality returned and she tried to speak, only then realising she still had Helen's panties in her mouth.

As his length managed to pierce the incredibly tight hole, Joe heard and muffled squeal and felt his wife's body begin to shift, trying to escape his thrust. His fingers gripped her full hips tightly as he held her in place, his weight pressing down. His shaft slid slowly, painfully tightly gripped, into her rear. With half his cock in her ass, Joe pulled out slightly, before pushing back in. This time, it had even more weight behind it as he allowed his body to sag forward. Hunched over her, he felt her round ass pressing to his groin. Still the fantasy of ravaging and humiliating his sister-in-law filled him.

"Fuck, you've got a tight ass Helen. I wouldn't do this to your sister, but you're just a filthy whore. A nasty, dirty little piece of fuck-meat. This ass is mine, Helen."

The initial pain of splitting her virgin ass had delayed Joe's orgasm, but he now started working back towards release. Humping her overwhelmed form, his cock began to slide more easily as he ploughed Clair's rear entrance. She sobbed in shock, whilst his fingers reached around to seize a handful of her breast in one hand, the other pressing the saliva sodden panties of her sister deeper into Clair's mouth. She heard his grunts of release in her ear and felt warm, hot liquid splashing her bowels.