Coco looked down at her clitty, now safely locked in a Pink chastity cage, making sure that she could *never* get an erection again, and would derive pleasure solely from her ass from now on.

"It looks good, doesn't it, Darling?" Rarity smirked, enjoying her lover's excited reaction to her cage fitting perfectly. "We may need to... modify it or change it out once your clit gets smaller again, but for the time being it should serve quite well!"

Coco tilted her head up to face her 5'9 tall girlfriend. "It really does Rara, thank you so much! I can't wait to better serve you now, and I know with you guiding me, all parts of my transition will go perfectly! Thank youthankyouthankyouthankyou!" Coco hugged Rarity around the waist, as tightly as she could again, and smiled as she felt her Mistress's busty breasts pushing against her forehead.

The taller girl grinned. "It was no problem at all, Darling. I'm just glad to see you so... exuberant about something I've done for you. I haven't seen you so happy since you *started* your transition, and that was months ago!"

The young Ms. Pommel felt appreciative and smiled, and then remembered what she was feeling earlier while she was masturbating. It had been a week or two since she had last cum, and seeing Rarity in her sexy Doctor's outfit was... effecting her.

"Mistress Rarity, would it be okay if I get fucked tonight? My clitty was leaking earlier and I feel a little turned on..."

"I thought you'd never ask Coco, would you like to peruse my selection of strap-ons I purchased some time ago just for this occasion?' Rarity beckoned for her girlfriend to follow, as she walked across the room to her closet. Inside, the older woman had a number of ribbed and smooth dildos, all attachable to a strap-on harness made for two women making love. Coco scanned each of them, finally setting her eyes on a rather large object, roughly 9-inches in length. The dildo was Pink-flesh colored, and was the largest by far of all the human-colored dildos Rarity possessed. Coco briefly squinted her eyes and saw the Dragon dildo in the back of the closet, slightly spiked and around 12-13 inches.

She reminded herself to ask about it some day.

"Rarity, let's go with the biggest human-colored one. Besides, it matches you!"

Rarity nodded, grabbing the flesh-colored dildo and pressing it into the harness. She grabbed a thicker curved one as well, and attached it to the other end so that it would enter her vagina.

"Bend over on the bed, dear. I think it's time that we got started."

Coco did as she was told, and looked up as she felt Rarity begin to mount her. The older beautiful woman leaned in for a kiss, and the trans girl accepted it willingly. They played with each others tongues like that for a few minutes, Rarity's dominating the whole affair, and Coco moaned as she and her Mistress both became more aroused. Finally, Rarity grabbed hold of her girlfriend's ample butt, and, after squeezing some lube onto the shaft of the big White cock, entered Coco's not-so virgin asshole.

The taller girl pushed harder into Coco, making her shudder and let out a girlish high-pitched moan. Rarity continued thrusting in and out as she had done countless other times, feeling the thicker portion of the double-ended sex toy also moving in and out of her pussy as she thrust, pleasuring both of them at once.

"Ahhhhh, you're making me feel so good Mistress~" Coco moaned, putting her weight on her left hand as she used the other to begin playing with her tits.

"That's a good girl. Mistress Rarity is gonna make you leak cum from your small, submissive clitty young lady," Rarity purred, thrusting faster into the other girl's ass. She saw Coco's cage shaking back and forth in the air as it's owner got fucked, feeling satisfaction at the success of her efforts. There was an audible metallic sound in the air, as the heart-shaped lock of the chastity cage fumbled up and down and lightly hit the plastic of the main part of the cage.

Just as Rarity felt her orgasm coming, she heard Coco yelp as her legs shook under her and her clit spurted out some clear cum. Rarity soon reached her own climax, enjoying the plateau come and go as she pulled out of Coco and briefly took off the strap-on, noticing how it was soaked in her own juices as well.

"Oh my, that felt... amazing, dear." Rarity exclaimed, looking down at her girlfriend's pathetic but cute form limply lying on the bed in a small puddle of her own cum.

"Thank you Mistress. I really need that." Coco said, turning and blushing up at her dominant girlfriend. "Can we go again?"

After Coco had multiple sissygasms, Rarity took a shower to wash up while Coco went and made dinner, her lock jingling with each barefoot step she took into and from their kitchen. The trans girl made her Mistress a delicious-looking sandwich, and grabbed a smaller one for herself as well.

Together they sat and watched some fashion videos, and Coco feel asleep next to her Mistress, still wearing her girl cage.

Author's Note

Thank you for reading another chapter, I hope you all enjoyed it as much as I did writing it!

Special thanks to my friend Emerald Fire, for his inspiration of my last story and his writing advice on this one. Check him out here!