She heads towards the Black Door

'This Black door thing sounds like the most likely place to learn something'
Walking along the hallway, the echoing sound of her footsteps quickly makes her start floating along instead of walking.

After just a few turns Supergirl comes to a midnight black door, all around it are a myriad of symbols, with a cluster of them just to the side of the door and at head height.

Trying to discern what the symbols are, most of them seem to be just random forms, while others seem to be stiff cocks and open pussies, one is a pair of pursed lips ready for kissing.
Yet others however just give her a headache when she tries to focus on them, which is in itself worrying, as she doesn't get headaches as long as she's powered.

Poking and pushing at the door and random symbols haven't done anything when she picks up the sound of several someones coming along the hallway.

Making a snap decision Supergirl flies up and puts herself flat against the roof, then floats slowly along the roof back around the first few corners towards the voices.

"...and then I just said 'Fuck you' and left him there, I mean, can you believe the nerve of that guy?"
"Well... he did ask first, even with how it sounded."

Below her Supergirl sees a group of people walking by and chatting, made quite a bit more weird by the fact that all of them are barefoot and wearing black robes with their hoods up.
'Whoa, cultists! Now we're getting somewhere, but how do I follow them through the door without being spotted'

As they pass by, she hears one more set of footsteps coming down the hallway and hurries around the corner, as she does she sees a solitary cultist in a too large robe hurrying along.

Dipping down Supergirl reaches out and taps the hooded head with a finger, knocking them ****.

Lifting their body and using a dash of superspeed she flies them back to where the hallways split, taking of their robe and putting it on herself, leaving a naked and **** blonde woman to be stashed under the stairs.
'Whoa, she's naked under there, and ugh, you can totally see both my boots and the collar of my suit... shoot, I guess there's nothing for it'

Using another dash of superspeed she removes her super-suit and stashes that next to the cultist leaving her in a pair of boxer briefs with toasters on them and nothing else, as the suit had built in support like a sports bra.
Throwing the robe back on Kara puts the hood up and checks that her stashed cultist and suit aren't too visible.
'Ok, they are hidden as well as they can be, time to speed back and join my crazy woman stealing cult... or whatever they are'

Speeding back towards the door, she slows down and comes around the final corner at a quick walk just as she hears one of the other cultists asking "Where's the initiate, they need to... oh there you are. About time!"

Supergirl shrugs her shoulders "Um... sorry, I got turned around?"
'Dang it, so much for sneaking behind the rest of the group unnoticed... speaking of noticed, they are all women, with a really vibrant red lipstick.... what if they aren't being kidnapped but are all joining a crazy make-up cult like Mary Kay or something?'

One of the cultists grabs her hand and pulls her towards the door "We can't continue without everyone being attuned to the door, do you remember what to do?"

"Er..."
'Ok, time for plan B, knock everyone out and kick the door down!'

The cultists lets out a long suffering sigh "I swear, half of you nitwits are so busy thinking about what you will be doing later that you forget all about how to get there."

Placing Supergirl's hand in the middle of the circle of symbols she points at one on the edge of the door in the shape of a pair of pursed lips "Hold your hand here, kiss those lips and think about Blaze"

"Oh, right" keeping her hand still Supergirl bends forward intent on giving the carved lips a quick peck.
'This is starting to sound more like some sorority hazing than a crazy cult, ok, kiss the wall and think about Blaze-Ouch! That hurt! What..I'm stuck!'

After a moments panic, both her lips and hand suddenly come free of the wall as the door makes an audible click and starts swinging open.

"I... what?" any more talk is interrupted as the cultist that guided her just a moment ago now embraces her and kisses her on the lips "Welcome, you are now attuned to the black door, and marked as having given yourself in service of Blaze" she then walks through the door.
The other cultists repeat the kiss and variations on the word welcome, before they too walk through the door.
'My hand, something stung it, I can see blood, though it's healed... and my lips, they are tingling all weird, even before they all started kissing me... which felt really great...'

The final cultists pushes her lightly in the shoulder "Stop dawdling, I need to stay out here to close the door but you need to get in there initiate"

Turning around and trying to look through the open door, Supergirl hesitates for another moment.
'I can still back out... but what if this is how I can save those women, they need me, I can't back out!
What is even in there, I can't see anything through this door... must be magic... Damn it, I guess I am going through this door'