(Spicy and a bit sad below. Pre-canon established Polytrix, I don't care, I won't be stopped. Trans girl Rumi is here, and she has a demon dick. Just so you know.)
Sometimes Rumi regrets entering a relationship with Mira and Zoey when she did, since she wasn't really ready yet for such commitments. Not "physically", at least. (She wasn't ready "emotionally" yet either, but girly pop didn't really think too much about that at first…)
Because holding hands is great. Cuddling is even better (though has to be incredibly limited - no half-naked cuddling. Zoey and Mira can do that together, but Rumi wants no part). Kissing is just awesome. And making out is a whole level above everything.
But…she can't have sex with them. It's not so much she doesn't want to (she does! She DOES! SHE DOES!), it's more she can't.
Clothes coming off = patterns becoming visible.
Patterns becoming visible = her secret being revealed.
Her secret being revealed = ??? (She doesn't want to know...)
And yeah, her patterns are only on her shoulders and neck for right now. Theoretically, she could keep a shirt on and still have sex with them that way. Except that's not an option either, because her penis is purple. And it has cat-like barbs. And a tapered tip. And it might have a knot too, but she's not 100% sure. (Stupid demon genes!)
No hiding any of THAT with a shirt. It definitely makes going to the bathhouse completely out of the question too...
So for the longest time, Rumi's sexual experiences are few and far between, and she's more a giver than a receiver during them. Mira and Zoey try to return the favor sometimes (they don't like passively lying back and letting Rumi do all the work), and at most Rumi has allowed them to palm or mouth her through her pants (that's fine. That's great, actually. They're not seeing anything anyways, it's just tactile sensation), but that's it. And she's certainly never come for them either.
(She does that on her own. In the shower. Replaying everything in her head, over and over and over again.
The little noises her girls make. The faces they make in the throes of pleasure. The way Zoey whimpers and squirms when she's about to come. The high-pitched whine Mira made once when she didn't want Rumi to pull her fingers out just yet afterwards.
The one time Rumi had almost lost herself during a makeout session with Zoey and growled, which made the maknae's whole body shudder. That other time Mira caught both her and Zoey by surprise when she returned home earlier from a photoshoot than they thought she would, the dancer mounting Rumi from behind as she was going down on Zoey and giving her a reach-around. Honmoon, that was the closest she had ever gotten to coming in front of them-!)
And yeah, maybe it is a little disheartening to her girls that they've never gotten Rumi off (not directly at least, but they don't know that), but it's fine! It's a boundary Rumi has set, and they respect her boundaries! She isn't much of a "sex person" anyways, so they're not going to push her to do anything she isn't comfortable doing.
They've both definitely fantasized about more, of course. About finally getting to see their lover, exposed and as vulnerable for them as they've ever been for her, and making her feel so, so good, just like she does for them. (They may or may not have had a very unserious "argument" before about who gets to blow Rumi first, if she ever lets them do that. It ended very fast when Zoey suggested they could "pass her back and forth like a blunt".)
They don't NEED that, though. They love Rumi regardless. Sometimes your partner doesn't need to get off to enjoy sex. Sometimes it's about the closeness, the emotions. It's selfish to want more from Rumi than she's willing to give. And she gives so much already.
(Rumi knows all this too, and she was very appreciative of their consideration for her boundaries. But she very much IS a "sex person", actually! In fact, post-reveal, Mira and Zoey were not ready for how much of a "sex person" Rumi turned out to be...)












