I’m definitely going to need a shower after this, Tom thought to himself matter-of-factly, continuing his trend of not quite appreciating his unique new world. Whatever needs, hopes, and desires he might have in his current form were by and large beside the point. Even if he did manage to extricate himself from the unbelievably hot, moist enclosure he had unexpectedly been made a guest of, there was very little he could do for himself in his current state.

Even the simplest action like cleaning himself off would require the help of his assistant. The idea that the girl who used to get him coffee and set his meetings for him, answering his beck and call, was now so in control of him that she could literally make her bodily orifices his temporary home if she wanted was beginning to sink in.

And the ongoing psychotic break between his lustful, animal brain and his fearful, rational mind was worrying him more and more. He had enjoyed the invitation to play with Rosa’s sex, caressing her folds and proving he still knew how to show a girl a good time even at his new size. But her sudden, unannounced decision to demote him from willing participant to living dildo had frankly been sort of terrifying. It had happened so fast and without any input from him that he honestly didn’t know whether or not he would survive it. Other than past experience with a few broken bones years earlier, he had no idea what sort of punishment his body was capable of withstanding, and even that was when he still stood a lean six feet tall.

But as terrified as he had been while he was being forcibly inserted into this beauty’s hungry pussy, his desire returned soon enough as he realized he wasn’t going to be crushed to death as he’d dreaded. The whole ordeal definitely had definitely left him sore, but no more than a good day at the gym, which was a step up from how bruised and broken he’d expected to be.

Feeling the walls of her inner muscles tensing and relaxing all around him, a wave of warm cum literally washing over him as she held him captive inside her while she worked herself to another powerful orgasm, it was like new parts of his brain he had never known existed were being stimulated. He felt as though fantasies that were somehow written into his DNA, but that he had never even dreamed due to their sheer logical absurdity, were now being awakened.

Contemplating these thoughts, he realized he had a strong urge again for sexual release. He had helped his goddess to a wonderful climax, but once inside her he had been a bit limited in his freedom of movement and most of it had been devoted to thrashing reflexively. Now, bathed in her juices and innervated with her scent, he was primed for some playtime of his own.

Unfortunately, that meant finding a way of Rosa. Unbeknownst to him, she had drifted into a light sleep while basking in the afterglow of their latest session, forgetting for a moment that her miniature paramour remained within her. His attempts to get her attention by merely moving around inside her again had failed, and so it seemed the only way out was without her help. Summoning the remainder of his energy, he began to work his way toward what he figured was out of her, his task made a bit easier because she was still slick from earlier. After a bit, he was able to slither his way out onto the sheets and get a breath of fresh air.

Turning around, Tom was again struck by the awesome sight of the mammoth girl who’s body he had just escaped. Her tan thighs rose on either side of him like huge walls, and the whole length of her sex, running from her bush high above him all the way down through the folds of her vulva and on to her crack formed an intricate display that he was able to inspect in much more detail at this scale than he ever had before.

While he stood there in awe of her lady bits, Rosa murmured a bit, drifting through some eminently pleasant dream, and began to roll over in her sleep. Caught off guard again, Tom rushed to avoid meeting an early demise underneath the mass of his sleeping giantess. Dashing to the side of her left leg which remained planted on the bed while the rest of her body pivoted around it, he waited until she had turned over onto her stomach completely, and then gave a few more seconds to be sure she was finished moving.

Now presented with that impossibly perfect ass again, he decided to do a bit of adventuring. Not like there was too much else he could attempt to get done on his own anyway. Using the crease in her skin where her thigh met the bottom of her left cheek as a makeshift foothold, he began a tough climb up her backside. It took about a minute to make it all the way up, and he nearly slipped down to the bed several times as her skin was still a bit slippery with sweat from their sexual escapade. But at last he found himself atop the largest butt he had ever encountered, and he couldn’t help but feel a bit proud as he admired its majesty.

Making his way over to the cleft between her cheeks, he straddled it at first and then knelt down and planted another kiss firmly on the inside of one of her huge hills. His desire to have a go at her ass was back, but he remembered his last attempt and concluded that it probably wouldn’t be ideal even now.

Rosa, however, was just about to come to the rescue. Coming out of her idyllic dreamscape right around the same time that Tom was despairing, she notice the tickling on her butt and looked back to find her man seemingly deep in frustrated thought.

“Oh no, did I end up forgetting about you after our last little bit of fun? I’m sorry, that’s so awful of me! Let me make it up to you by making this easier for you.”

Reaching down to her sides, she began to slowly spread her cheeks with her hands, leaving Tom to tumble down into the valley that formed between them. He struggled again to find his footing on the uneven surface, and the suddenly very powerful aroma he was confronted with was a bit of a distraction as well. He was struck by how strongly he could smell her, as with before when faced with her pussy. But surprisingly, he wasn’t disgusted by the scent as he thought he would be. It was some sort of mix of sweat, sex, and musky notes of her ass for sure, but in his heightened state of arousal he found it only drove him crazier.

Climbing forward he found himself face to face with her asshole, his intended target. Like many sights and sensations from the past few hours, this one was quite a lot to take in. The wrinkled little bud was simple and non-descript, not revolting or anything, but larger across than his head at this size. He figured he could shove his whole arm in with ease if he wanted, but that wasn’t his goal at the moment.

Hoisting himself up a bit further and directing his now rock-hard manhood toward her hole, he eased himself in and found it tight enough to work for his needs. He began to pump enthusiastically in and out and found himself again taken with the powerfully erotic situation he was living out. Not usually one for anal sex, Tom nonetheless felt that this was much more the way the whole affair should be carried out. Instead of him aggressively invading Rosa, the power relationship was the polar opposite. Here he sat, a guest in the valley of her massive ass, pleasuring himself in an anus that he was pretty sure could swallow him up if he wasn’t careful. He was certainly still invading her most private space, but much more implicitly with her permission. If she tired of the game, an unceremonious shake of her ass would be more than enough to end his fun quite easily.

Lucky for Tom, however, Rosa was taking a particular delight in the whole experience. She had come to the same conclusion as he had that this was the optimal way to engage in anal sex. What’s more, he wasn’t even aware that she was exercising an awful lot of willpower in holding back and just letting him do his thing, because as amusing as the sensation of his tiny cock felt sliding in and out of the edge of her asshole, her mind was now swimming with devilish ideas of introducing him to it a little more thoroughly. She resolved to leave that till later. She’d need to be diplomatic about it, definitely, and he was still getting adjusted to his new life. But it was going to happen, she realized, regardless of what his feelings on the matter were.

Once Tom had finished and spilled his load into Rosa’s butthole, he laid back on her ass flesh to rest for a bit and recuperate, feeling the exhaustion now from his adventures and riding his own post-climax high.

Rosa, meanwhile, had grown tired of holding her cheeks apart for her man, and absentmindedly let go of them while she debated what to do next. She realized almost immediately what she had done, but as she looked down at her crack and heard Tom’s very faintly muffled cries she couldn’t help but giggle again.

“Oh my goodness, you are just too perfect like that! My ass makes the perfect sandwich for you, and I can’t believe how good you feel wriggling against my butthole. This just might be one of my favorite new ways to take you around with me.”

Her wonderful ass made quite the seal around the little guy, and so she couldn’t hear any of his frustrated objections to her proposed plan to use it as a common storage place for him. Instead, she simply got out of bed and stood up, pleased at how snugly he stayed wedged in her crack even while moving around, and headed off to the shower to clean herself up and relax before bedtime and the end of her first night with her toy.