Image imported from derpibooru 
Original Description:
 
Find more amazing art by Timkaa at:  
https://twitter.com/timkaaspie  
https://www.deviantart.com/timkaa
 
__
 
In Crossing The Trixie Bridge, seven humans are brought to Equestria. In the trying times, one of the seven, Kelly, had fallen for Big Mac. However, fearing for her safety and requiring companionship while Big Mac is unavailable, Kelly had fallen into the good graces of Princess Luna, and a complicated relationship had quickly developed.
 
Now visiting Canterlot for the first time, Kelly realizes too late that she might have walked right into the mouth of the beast. Thankfully, Luna is ready to make herself available in any way needed to protect this new human mare she has become so attached to.
 
__
 
Kelly finished stripping down and stepped into a bubble bath that might as well have been bigger than Luna’s bed.
 
“Sorry again about everything back there. Between the mess we made, the melted ice, and however much of Mac’s apple sauce sloshed outta me, I figured the Bacardi would have covered it all up.”
 
Luna extended a hoof and helped Kelly down the steps of the tub.
 
… Yes, that’s how big her bathtub was.
 
“You need not worry. Tis my fault for requesting to join your Mile High Club. Easy goes it, dear.”
 
With her lovely lady now safely seated, she could take a little more time to relax before she would actually be needed for the evening.
 
“You are very quick to find such resourceful methods. That orange-flavored rum was all the guards could detect when they opened the door for us.”
 
Such optimism was adorable on Luna, and Kelly adored it.
 
“No, Moon Butt. No rum in the world makes ponies act like that. It just made it easier to lie about.”
 
Luna scooped up some extra suds on the tip of her wings and adorned them upon Kelly’s head like a crown, making her giggle childishly at her own antics.
 
“My guards are not ones to ask unnecessary questions or gossip. They trust me to tell them what secrets they need to know and what goings-on are for me alone.”
 
Their relaxing moments of bathing were suddenly interrupted by the arching doors flinging open by one angry princess of the sun. No cordial greetings were given as she marched herself in uninvited.
 
“Luna! Where have you been? Not only are you late, you’ve had me running all over Canterlot and my own castle ensuring every creature is welcomed and-are you taking a bath with Kelly?”
 
Apparently, the crown of suds had masked her presence enough that Celestia had missed her, at least for a moment.
 
However, Celestia certainly felt stupid now that she knew why there were human-sized clothes on the floor. Probably also explained the strong sweet scents that were emanating from them. Some with an odd chemical smell blended with oranges were there as well. Not nearly as strong as the sweet perfume, but that could wait until after she excused herself.
 
“Please excuse my outburst, Miss Kelly. This has been some very trying set of days, as I’m sure you can imagine… How are you healing?”
 
Somehow with all the relationship drama, security scares, and inexcusable sexual escapades she had been navigating, she hadn’t really been paying much mind to it.
 
“Um… better than I could have hoped for, really. I’m walking normally again, got full use of my arm… I doubt I can do any jumping jacks, but-”
 
She spun herself and stood up in the tub. Thankfully, the bubbles covered her crotch and enough had stuck to her that only part of one of her breasts was semi-visible. However, when she turned again there were no suds to cover her ass while she cleared the extra bubbles away from her side.
 
“It’s still sore. No bleeding or infection, thankfully. Even most of the bruising is gone.”
 
Kelly had no idea how Celestia would react to seeing her in this state of undress but had hoped it would have been enough to make her uncomfortable enough to leave.
 
Instead, the big white horse stood there and took it all in. If that didn’t work, Kelly lowered her arm and held her wound with her other hand. There was something else that would make the unwanted intruder feel like leaving.
 
“I still owe you my life for helping to save me. And I know things must have been hard for you as late. Thankfully, Luna has been helping me through this when Big Mac isn’t around, what with the farm and all. I can’t even sleep most nights. And I’m sorry if I’ve been keeping her from you. It’s just… she told me trial would be happening soon…”
 
What started off as a ploy for privacy quickly had her revisit the fact that she was in Solar Guard central. The four guards she really did know were cool with her because of Cerb and Benny, or Chris as of late.
 
She was in their territory and was the reason three of them were in a dungeon and about to have their lives ruined. The real concern for her safety returned, along with a familiar chill that not even the warmth of the bathwater could mask.
 
Even if Celestia was watching, Luna couldn’t let Kelly suffer like this, and quickly pulled her frightened lover into her forelegs. She wrapped Kelly up in her wings and down into the warming waters.
 
“Calm thyself, Kelly. You have nothing to fear. Not while I am with you.”
 
This was a mess, and Luna would deal with the fallout of her actions later if that came to pass.
 
“Sister, I apologize for my absence. It is as Kelly says. I have been tending to her and the wounds beyond that of the flesh. You and I can settle any other matters some other time.”