Spike's Little Succubi

"You know you can go ahead and let it happen." Spike said, entering the bathroom with Rainbow in his arms. He noticed she still seemed to be resisting the change a little. "Don't have to hold it back.'

"I...I know, but..." She looked a tad embarrassed, "What if it makes me look goofy..?"

"If it's anything like Twilight and Rarity's changes, then 'goofy' is gonna be the last thing that'll describe you." Reaching her shower, he flicked his tail over the knobs to get the water running. As he did, an idea formed in his head, and he couldn't help but smirk. "Ok, while it warms up, let's get you out of these clothes."

"Get me...?" She blushed when he set her down and kneeled to undo her shorts. "Sp-Spike...! I..."

"Dashie, I've seen you in gym shorts. In all honesty, you have an ass..." Feeling bold, he reached around and slid his hand down the back of her shorts, giving her rear a squeeze before slowly pulling them down, "...some mares would kill to have."

Her cheeks turned even redder. "You...you think...?" She'd always prided herself on her athleticism, but never expected someone'd find her...well, sexually attractive. She gasped and grabbed his head when he gave his answer by sliding his surprisingly long tongue up between her legs, giving her pussy a slow, tortuous lick.

"To be honest, I've been eager to taste your rainbow for a while." He gave her another lick, the tip of his tongue slipping briefly between her netherlips. "Yum!"

"Spike...!" Rainbow squeaked, holding onto his head to prop herself despite his grip on her. His licks were slowly coming faster and faster, each time he'd dip his tongue into her a little deeper. "Oh Celestia..." After a moment, he reached up to slip his hand under her top, his palm pressing against her somewhat small breast. That was something she'd always been a tiny bit sensitive about...but judging by the way he was rolling her nipple around against his hand, he didn't care. An uncharacteristic squeal escaped her when he caught the nub in his fingers and pinched it.

Spike looked satisfied when he heard that, bringing his hand back down to her rear, pulling her a little closer in the process. He could feel her tremble slightly, and decided that was enough teasing. After one more lick, he wrapped his mouth around her pussy and plunged his tongue in.

"Spiiiikeee!" She screamed, her voice turning husky as she changed. Spike paused when he felt her rear plump up a little in his grip, though it still had the toned feel, along with her tail changing to a thin, whip-like form like Twilight's.

The sound of fabric tearing brought his gaze up, past the now obvious set of abs, up to her top which her new bust was now tearing open, which she quickly helped along by ripping it off the rest of the way with a moan of relief. 'Whoa...! Those are as big as Celestia's!' He thought, watching them bounce gently. Her wings had gone batty as well, and when she looked down at him, her eyes were glowing brightly. Though, there wasn't just hunger showing in her eyes; he could see a fair amount of desire as he pulled away, along with more than a bit of unbridled lust. "Ok, I think it's bath time, then feeding."

As soon as he was on his feet, though, Rainbow's arms and legs were around him. "Take me now, Master...please!" She pleaded, not even trying to hide the desperation in her voice.

"Master...??" Spike asked. Rainbow Dash was the last pony he'd ever expect to call anyone that, much less willingly. However, he'be been around the two unicorns enough to tell when a succubus was as horny as she was hungry. And Dashie was both in spades. "Heh, I take it you don't want 'gentle', do you?"

"No! Pound your little Dashie, Master. Run her like you own her!"

"Well, if you insist. However, bath first." He managed to get her down before working his own clothes off, and led her into the shower. There he started gently scrubbing her down from head to toe.

As his hands slowly ran down her body, Rainbow realized something else from her first transformation. Not only did it have her libido running wild, but it was making her body extra sensitive at the moment; Spike's fingers sent jolts up her spine and between her legs every time they ran across her flesh. She couldn't help whining in need as her pussy felt like it was on fire from desire. "Master..." She whimpered, her sex quivering when his hands reached her hips. "I need you..."

"Almost done." He said, scrubbing up her feet. The moment he finished rinsing her off, he was back on his feet and pinning her against the wall with his own body. "NOW it's feeding time." He growled, earning a squeal of delight and pleasure from Rainbow. "Dashie want her pounding?" He asked, the tip of his cock resting against her entrance.

"Yes! Fuck Dashie HARD, MaaaaAAHH!" She cried out when he impaled her and began a forceful rhythm, jostling her body slightly with each thrush. "YES! Rut your little Dashie...haa! Rut her hard!" She once again wraps her arms and legs around him, feeling the air with shrieks and cries for him to 'claim his little mare'.

"Damn! Are all Succubi this tight?" He grunted, thrusting as hard as he could, burying his face in her breasts in the process.

"Master...I...I'm gonna...." She panted, the mix of hunger, arousal, and Spike's barrage proving to be more than she could take. She let out a squealing wail as her orgasm in, her grip on Spike tightening.

He wasn't done, however. "I know you aren't full just from that."

"Maybeeeee!" She squeaked as he resumed the frantic pace.

"Heh...oh wow..." Dash panted, curled up with Spike on her bed. It took an hour and five orgasms, but she was finally satisfied, though she was definitely going to be stuck just flying for a few days.

"Feel better?" Spike asked, holding her close. As he did, he noticed she was still in her succubus form. "How come you haven't changed back?"

"Big time, but...after fighting it so long, there's still a bit of me that feels off having this. I need to get accustomed to it, Just accepting the whole change isn't really going to work."

"Ah. well, i don't see anything wrong with that..."

"Besides..." She cupped her new larger breasts and slipped down to the floor in front of him. "I wanna put these bad girls to use!"

"To use...?" He started, only to groan when she promptly wedged his still erect shaft between them, slowly rubbing them up and down as she wrapped her lips around the head. "S-sweet Celestia!" He moaned...leaning back some. "H-how ?"

"What? I like porn as much as the next mare." She replied, purring when he ran his hand through her mane.

"Wait, did you/I just p-purr...?"