You need way more info

Stunned by everything, you really didn't know what to make of things yet. You were staring at Zoe's body, and she clearly seemed to let you do whatever you wish with it, so you slumped back in your seat--feeling Zoe's plump rear collide with the cushions--as you just sort of took a moment to let your adrenaline subside. It wasn't easy, as every little thing seemed ready to set you off. Your brunette hair tickling at your shoulders, every tiny motion of your chests, the sensation of nothing present when you squeezed your thighs together--or at least, some very alien new sensations. Even your breathing felt and sounded different in your ears, which was a constant distraction.

"I don't understand, Zoe." You shook your head a little, looking down at your newly-acquired body again. At Zoe's body, fully accessible to move and use as you wished, but you showed considerable restraint due to the oddity of the situation. "How in the world will any of this help me with Kim?"

"Ah, well, let's count the ways. I don't know exactly what you need in your relationship to spice it up, but I seem to recall a few key details about Kim from what I've overheard. Firstly, she's with you, but she's bisexual, yes? Well, consider that if you're wearing me, you could satisfy both sides of her desires."

Something felt like your face was changing, morphing, as was your hair. You reached a hand up for a moment, feeling slightly different contours, before you picked up the spectrometer mirror to see your reflection. Your face indeed changed, Zoe managed to alter your appearance to something that looked almost like your original one! But, not quite... you still had clearly feminine features with a smaller nose and pouty lips and big, wide eyes, and a pixie cut hairstyle to top it off. If you had a sister, she might have looked like this. "Zoe, are you serious? You're saying that if I'm going to rekindle her passion, I'm going to need to play for both teams?"

"That's a crude way to put it, but sure. It's a possibility. I can alter your appearance in a variety of ways when you wear me. In fact, I could turn you into an exact replica of Kim, if I knew her well enough. Wouldn't that be helpful? You want to get her the perfect gift, you don't know if it'll fit? You and me together, we can ensure that's never a problem! Not to mention, I know a thing or two about fashion for women."

You didn't admit that your gifts to her were hit or miss. Clothes were simply out of the picture if you were trying to get something for Kim as a surprise. "Okay, uh, fine. What else?"

"Well, maybe I'm not only worn by you, maybe Kim wears me! I don't know what she looks like, but if variety is part of the issue, I can change her appearance too. I haven't even gotten to the part where you can embed technology under my skin. Imagine all the vibrators, hidden away under my body when she's wearing me to--"

"Okay, I get it! I'm... definitely seeing where you can do a lot of stuff normal people can't. But I don't know that any of that will help us really understand each other."

Zoe giggles a little, as you sprawl out further on your chair in a very un-womanly fashion. "That last part is the most interesting one! I can be worn by more than one person at once. It takes a little premeditation, but when two or more people enter my body, once I seal up, everyone is compressed back into the shape of just one body. Movement and control depends on positions and how you were when I seal up. If you need a shared perspective, then share a body for a while. Or if you want to have a real party... my record is nine people, by the way, and it was an uncoordinated mess but it was still great fun."

On one hand, any of these things--if Kim wasn't freaked out by the idea--might indeed help you recharge your romance with Kim. Maybe it would even be better than before! Still, you couldn't help but wonder why Zoe was so adamant about helping you. There was something she wasn't telling you.