Have a big breasted Zecora (like F or G cup) titty gang-banged (basically a bunch of guys take turns fucking her tits), with lots of tit-fucking and maybe a bit of nipple-fucking on both breasts.

Soarin’ just groaned as he felt the soft, pillowy mounds of Zecora’s breasts slide across his cock. It throbbed, hard, his flare swelling slightly and spewing a few generous drops of pre across her striped titflesh. “Oh, Celestia.”

“You…mmff…got that right,” grunted Shining Armor from right beside him. His member was currently six inches  deep into Zecora’s right nipple, which was more than big enough to take his size. He slowly slid all the way inside of her, his heavy, aching balls slapping against the underside of her breasts. “Your breasts, Zecora. They’re…”

“…incredible,” Soarin’ finished for him, panting.

“Eeyup,” Big Mac said. He had his eyes closed, every bulging muscle on his arms and chest completely tense with erect pleasure as he slowly fucked Zecora’s left nipple. His massive, footlong cock thrust in and out of her, each time with a wet popping noise that left only a steady drip of precum mixed with zebra milk as evidence.

“You like my breasts?” Zecora said, her deep, feminine voice serving only to make the three’s boners even harder. All three stallions nodded. “How glad I am that you enjoy my chest.”

“Oh,” Soarin’ said, “I’m doing a bit more than enjoying it.” He shot her a cheeky grin, though the the effect was somewhat ruined when another throb of his cock brought another shot of precum to spray across Zecora’s ample chest.

She didn’t seem to mind. If anything, the amusement in her eyes deepened, and her voice lowered to a tone that could only be described as sultry.

“Good for stallions who love to fuck,” she said. She leaned over her breasts and breathed gently over Soarin’s twitching cock. He moaned softly, giving off a few more spurts of pre. This time, some even landed on her muzzle. She smiled.

“It’s good that I love your sexual muck.” And then, lovingly, she took a hold of her breasts in both hands and squeezed them together over Soarin’s cock. His breath came a little faster, his thrusts coming a little harder.

Zecora just smiled up at him and bent her head down until her mouth was directly beside a puddle of precum that he’d left on her bust. “Mm,” she murmured. “A delicious meal.”

Soarin squeezed his eyes tight as Zecora slowly drew her tongue across the puddle of precum, over the curve of her giant, bouncing breast, and right to the base of his cock.

“Oh Celestia, Zecora,” Soarin’ whimpered.

Her smiled widened. “Your cocks look quite enticing to feel.” And with that, she let go of her breasts - which flopped back into place, jiggling lightly - and reached out to take hold of Big Mac and Shining’s members. They groaned and fidgeted as she tightened her grip, then moaned as she guided them into her nipples, her hands sliding over their slick shafts as they pumped in and out of her.

“You are all doing very well,” Zecora said. She gave Big Mac’s cock a pat, and it burst with a few thick ropes of precum. Mac just kept on pumping, thrusting into Zecora’s bust as though he hadn’t even noticed.

Zecora licked her lips, savoring the salty taste on her tongue. “Your large arousal, my tricks shall quell.”