As the door closed, Gretchen breathed a sigh of relief and let go of the dog's muzzle, stroking the back of his head.
"Good boy, hünd. Good boy."
With a short whine that rose into a yip, Hünd licked her face. In the intervening interval, he'd gone half-soft, and Gretchen sat back against the desk with a thought. With a smile, she scooted him forward. "Sit, boy."
Slipping two fingers into herself, Gretchen smiled and laid her hand on his member, beginning to rub. Gripping the dog's member, she slowly began to rub his cock, running her fingers over the smooth flesh, coaxing him back into arousal. With a quiet yip, the dog began to thrust against her hand, Gretchen's thumb running against the bottom, feeling the pulsing vein. As he hardened fully again, she smirked, before rolling over, moving the bedroll and pillow under her rump, spreading her legs and her folds. "C'mere, boy. Come 'n get it."
With another happy yap, Hünd padded forward, placing his paws on her hips, beginning to thrust down into her. With the position changed, Gretchen pressed her face against the floor and pushed her rear back against the dog's powerful thrusts, giving little grunts of pleasure every time his hips slapped hers, rubbing her slick hands over her breasts. The dog's cock slammed into her, tip pressing against her with each thrust, short spurts of precum splattering her cervix. With a grin, she gloried in it, pressing back against him every time he pulled back, taking him in and loving every second.
As Hünd kept up his lusty pace, Gretchen began to realize that his cock was getting bigger-at least, at the base. She'd not had a dog before, and didn't know what to make of it-save that it felt delicious. As the forming knot began to spread her every time he went in or out, Gretchen began to pant, the feeling decidedly novel. "Yesss...that's a good boy...that's a good Hünd...fuck me harder..."