Filling In

“I...I didn’t think that - Oh buck,” Sunburst croaked. Adjusting his spectacles, peering down at the mare sating herself on him, he gulped.

Having pinned the stallion against the wall of his study, Starlight rammed her behind against him. Tricking him into drinking some alchemically enhanced tea had been easy, ensuring he’d stay hard for several hours, but getting him to take the initiative was a trial. In the end, after he’d popped wood, she’d resigned herself to getting him started.

She’d done what any reasonable mare in need of a rutting would do - she simply levitated him into the air, got him against a wall, and started screwing herself on him. Even if he didn’t join her, she’d begrudgingly accept using him as a marital aid - after all, nothing could compare to a real stallionhood. It wasn’t like he seemed to mind being a living fuck-toy, though his lack of experience and timidity were a painful hindrance.

A part of her felt bad for duping Trixie, but a larger, much more demanding part of her needed the lay. She’d tried everything to quell her body’s urges - dildos, magical masturbation, rubbing one out with her hoof - yet nothing had left her satisfied. Even after getting off multiple times, she was left pining for some real action.

“Just - Mmph - grab on and start fucking. It’s not that hard of a concept,” she groused, leering over her shoulder at him.

“Um - Right, o...ok,” he murmured. After wiping the mane from his face, he questioningly rested a forehoof on her hip and lightly tugged. “Like this?”

Slamming her rear into reverse, effectively crushing him against the wall, she did what she could to satisfy herself. “Harder! Throw your hips into it!” Starlight demanded.

She truthfully couldn’t say if he was a virgin or not, not like it mattered much, yet his amateurish and wholly pitiable skill was a disappointment - still, she was undeterred. If she had to teach him how to rut a mare, at least she’d know that he would be properly trained. Curbing her enthusiasm in the slightest degree, she waited for him to comply.

Bracing his hind-legs and nervously looking down at the mare’s back, Sunburst thrust his hips. The relatively gentle move was eclipsed entirely, as she eagerly gyrated on his groin. As she rocked forward, allowing him to see a bit of his slick and exceedingly rigid shaft, he bucked his hips a second time, then a third and a fourth, until he was rhythmically humping away.

Easing her pace, Starlight moved in tune with her friend. Despite his efforts being soft and gentle, she damn near swooned. “There we go,” she purred, letting him get a feel for it, “just like that.”

Clenching around him on the withdrawals, while relaxing on his plunges, she relished the sensation of his medial ring against her g-spot. His plump balls, brimming with Celestia knew how much unspent seed, swung and delicately slapped against her clit - sure, he may have lacked slightly in technique and zeal, but it felt downright divine.

Evoking her mystical power, Starlight sorcerously tweaked her nipples. Even if he wasn’t sure exactly what he was doing, that didn’t mean she wasn’t allowed to get herself off throughout the affair. As she dipped her head, peering down her belly, she watched him plowing her.

“This feels great,” he rasped, moving faster with every second.

With the stallion finally having found the drive to take the reins, she couldn’t help herself from giving him a few pointers. “Try - Nnnf - Try laying on me while you’re doing it.”

Sunburst nodded and draped himself on her back, as his forelegs locked around her hips. The subtle change in position was amazing, doubtlessly fanning the flames of his stallionish impulses and adding to Starlight’s enjoyment. It wasn’t the perfect mount, granted, but it was damn sure better than anything he’d done so far.

Little by little, he fell into his role. The tip of his length kissed her depths, sending bolts of pleasure through her frame, while he hammered into her. While it wasn’t the best lay she’d had, it was just what the doctor ordered. Her passion soared, her heart thundered in her chest, and she was driven ever nearer to the brink.

“I...I don’t think I can…” Sunburst sputtered.

His words shook her from her reverie, making her aware of just how close he was. His stallionhood flared and twitched within her, giving further evidence that was reaching his limit. In a flurry of movement, magically teasing herself harder than ever, she fiercely bucked back against him.

He shuddered and hilted, holding her tight and panting in her ear. “Oh sweet Celestia,” he wheezed.

The sensation of being filled, with the heat of his load coursing into her, did Starlight in. Biting her bottom lip and trembling from head to hoof, her marehood winked and dribbled nectar over his crotch and to the carpet. There was something primal about having a stallion cum inside her and it scratched her bestial itch. Savoring the moment, feeling the flow of his seed taper off, she steeled her resolve and began moving once again.

“W...wha…” he mumbled.

She felt sure that he’d be fine - at least, she hoped he’d be fine. Be damned if she was going to be satisfied with just one round and she had no intention of stopping until she’d had her fill. She’d deceived her friend, shirked her responsibilities, and given Sunburst an elixir which would keep him hard for hours on end - as such, there was no way she would be leaving unless she was drenched in sweat and walking funny.

Twisting her head and peeking back at him, a wolfish grin graced her features. “Just try to keep up…”