Date: Sun, 19 Jan 2014 10:53:36 +1100 From: Paul Hart Subject: Let's do it Part 5. Let's do it. Part 5 Marina had got her breath back, following Mark's advice she had done nothing to clean up between her legs...it was obvious what he'd been doing to her but I now knew that what she'd undergone was - really nothing but a warm-up where Rastus was concerned. Mark now handed her the smaller jacket, slipping it on she posed for me briefly, clasped tight around her tiny waist it emphasised the rounded thrust of pert buttocks. Rastus had noticed something too....she must have been reeking of sex because glancing down...I noticed he was already raring to go, one large glistening pink penis jutted along his belly as he eyed her off. Marina too noticed, putting hand to her mouth she giggled nervously as Mark reassured her and still glancing behind, allowed herself to be positioned in much the same spot I'd only recently vacated, there she buried her head in her arms with buttocks on offer...and waited. She didn't have long, Mark obviously was having difficulty in restraining Rastus, he had her scent alright and no sooner had he mounted the girl than Mark made a grab for his penis, in one swift motion he positioned it between Marina's thighs and then, panting heavily, Rastus shoved it up her, no pausing, nothing - he knew what he wanted! Marina let out a squeal "Oh my God, I didn't know it was that long...couldn't see it all, his fur..." and she trailed off as again the dog got busy. This time of course I had a clear view of the action, Rastus had almost become a bur of motion, he humped her with incredible vigour meanwhile locking his front legs around her as if to keep her in position. Perhaps it was as well he did so because her slight body probably weighed not much more than his own and now rocked violently back and forth to his canine thrusts. Marina's mouth opened in a wide "O" and her eyes were wide and staring....abruptly Rastus stopped, withdrew and stood beside her panting...maybe a minute passed during which Marina began to gather herself while Mark reassured her. A sudden exclamation from her told me that Rastus had penetrated her once more...this time she began to whimper, whether from pain or pleasure I couldn't tell...but of one thing I was certain, the dog was certainly enjoying her! I stood fascinated, watching as the dainty young woman I knew allowed herself to be enjoyed by the insatiable animal, Rastus took a couple more of those mysterious breaks but otherwise continued at the same frantic pace....it wasn't long before I heard Marina's first orgasm....her face screwed up and she began to yell...I'd not heard her do that before, then she was gasping for air....still Rastus thrust deep...sobbing slightly she let out another yell and as if encouraged the dog seemed to thrust deeper. I guessed what was coming, Rastus slowed and shuddered "God he's filling me" she called out...."Just listen to the sound it makes and....I'm, I'm starting to burst....it's that thing, that knot, it must be...oh my God. Anxiously I watched, should we have allowed so slightly built a girl to be subject to the dog's attentions? He'd stopped humping her, a sure sign as to what was now happening....Marina had her head thrown right back and she was making little mewing sounds now, tears rolling down her cheeks.."Never felt this full....never...God so stretched...like a cricket ball up inside me...don't let him move! He'll pull me inside out....oh fuck, I'm cumming again...oh yes, fuck! I knew how she felt....I'd probably had as many men up me as she had but not one could compare with the size of that knotted penis...I was totally unprepared...so it was with relief that I saw Mark create a distraction. Still naked he'd come erect again while watching his dog fuck Marina, now he knelt in front of her, penis pressed to her lips. Almost as a reflex, Marina took him in and began to suck, head bobbing vigorously she momentarily forgot the pain of dog knotting...and then Rastus abruptly turned and - dismounted. This time Marine screamed and tried to pull away....of course she couldn't but the screams turned to moans and I wondered, had the dog been stimulating that elusive 'G' spot? Shaking still Marina began to swear....cursing steadily as the tremors took her.....Mark looked at me "Well, she'll be busy for a while won't she, they're stuck of course! Shall we watch - and have a little fun on the side?" Mark was still erect since Marina had been distracted from the task of sucking him off, I'd also become aroused so as his fingers began to play with the tip of my penis, my own hand began to fondle him. Now there's some who say otherwise but I firmly believe that only men can truly pleasure each other, a girl's hand just doesn't know the right moves....probably the same for women - toying with a clitoris is best done by another female...so it was that Mark and I skilfully enjoyed one another while Marina gritted her teeth waiting for Rastus to subside. We took our time as of course did Rastus, Mark was becoming very aroused, probably by a combination of factors..so after nearly 30 minutes of heavy petting and fondling he muttered "Please....please....can I come in....I need it....will you...let me....please?" I didn't need too much asking, I knew I'd be sore after my appointment with Rastus but..Mark was so cute...and he was doing such lovely things with my penis...then I felt his fingers caress my buttocks...oh yes there was no doubting what young Mark wanted....so it was with ridiculous ease that he entered me....in contrast to his dog's, the strokes were slow and regular...I couldn't help myself, turning my head I sought his lips...and we exchanged a lingering kiss, next I knew I was on my back with legs pressed way back...again we managed to kiss...it was so lovely...yes I decided that I rather liked Mark...By then Marina had recovered to the extent that she was now an observer "Don't miss a chance do you boys? That's it Mark, you stick it right up him, look, he's loving it!" True, I'd started dribbling cum, speaking of which I'd noticed...Marina's thighs, the stuff was oozing from her pussy which could only mean that...yes, Rastus was inching out of her...oh my! Marina's delicious little body seemed none the worse for wear but she on the other hand was still hopelessly aroused - and she said so...young Mark still hadn't cum in me and meanwhile Rastus was nosing between his master's buttocks. Muttering his apologies Mark pulled out of me sighing "Oh well, perhaps I'd better attend to him..and applying some stuff from his stocks, anointed his anus and hunched down before Rastus. It must have been a well practised routine for in a flash Rastus was in him and humping wildly.....Mark muttered encouragement. "yes boy, that's it...oh God I'll never get used to this will I?" Linking hands Marina and I watched as Rastus continued to fuck hell out of his grateful owner. We exchanged glances, it was Marina who spoke first "Do you think...that well, maybe in a week, or couple of weeks - we could um, invite Mark round again...with Rastus?" I thought it a wonderful idea...but Mark hadn't made me cum had he...and here was Marina "Oh no...you don't, too soon....oh well then...why not?" and with Marina lying with legs spread I began to enjoy her, for a second I was astonished at how slippery she was...entry was deliciously easy and then I realised...Rastus had donated his lubricant and she was simply awash with him....it felt rather kinky to be probing where a dog had just cum! Pretty soon the girl's hips began to rise and fall and her arms went round me, she smiled prettily and murmured "Well darling, all in all - we've had rather a busy day haven't we....aren't we naughty though, we DO enjoy our sex so much...lucky too...?" I had to agree.