Well, this is awkward.

I look up from my phone at a surprised looking Kathryn, who is walking over to the bed, bending down to me and planting a kiss on... my cheek. It tingles a bit, but nothing more happens. I quickly shake my hand to make sure I'm still in control of my body, then breathe a sigh of relief.

"So I guess kissing people on the cheek is safe? I'm a bit disappointed it let me do that to be honest." Kathryn sits down beside me. "Now I'm kinda wondering if it does other things if I kiss you in other places though".

With that, she puts her mouth to my ear and starts tenderly caressing it with her tongue.

His earwax tastes kinda weird. Kinda less bad than I expected. Must be that customization in action I guess. Too bad the kiss doesn't seem to do anything.

Wait, Kathryn is way to preoccupied with her tongue out to be saying that out loud. "Hey, I think I'm hearing your thoughts in my head when you do that."

Her tongue abruptly stops and she looks slightly embarrassed. "What exactly did you hear?"

"Just something about my ears tasting weird." We exchange a look and burst into giggles.

"They do though. And you should give them a wash next time you're in the shower. Speaking of, want me to do it for you? There's still some hot water left." I can't tell if her grin is evil or just horny.

"You were just in there, and you already want to go again?"

Now her grin is definitely evil. "Who said anything about me going again?" She grabs my head and plants a kiss directly on my lips. Again there is that feeling of pressure rushing into my lungs and Kathryn's body falls onto my lap.

"Don't worry, I won't take long" I hear my voice say.

Unable to control myself, I lay Kathryn's body back onto the bed. I notice Kathryn in my body getting a bit distracted by the towel slipping away from her and revealing her now sizeable naked boobs. She makes me grope and knead them for a bit before heading to the bathroom.

Having fun?

"I'm sorry, I can't just not play with my new boobs. They look so delicious from the outside!"

You have a point there, her new breasts do look fantastic. Those succubi sure have their spheroid shapes down, I'll give them that.

We're in the shower now, and Kathryn turns the water on. There's still warm water in the pipes and it instantly feels nice on my head and back. "Ohh, it feels a bit different on your skin." As she bends back to reach for her shower lotion, some of the spray hits my chest.

Wait, why does it tingle like that?

Kathryn notices it too and starts rubbing the lotion on my chest. "It feels just like before when my boobs started to grow--- Wait! YOU'RE GROWING BOOBS!" I feel my body flood with endorphins from her excitement.

I'm growing boobs? I'm growing boobs! I have no idea whether to be excited or panicking right now. Umm, Kathryn? Could you maybe not?

"There's no way I'm stopping right now! I wanna see where this goes! Like, if the customizations follow me into your body, what else can they do?"

Her excitement is infectious (in this case literally, since I can feel her emotions in my body), and I have to admit I'm curious too. I guess since awareness if off for everyone else they'll just accept this as normal? And those breasts will shrink back eventually?

"See, you're getting it! The succubi have our back, you have nothing to worry about. Now relax and enjoy the feeling of your titties growing!"

They do feel really good, especially as Kathryn kneads them with my soapy hands, rubbing them as they feel larger and larger with every stroke. The hair that had been growing on my chest has completely receded and made way for silky smooth skin, yielding to the pressure of my hands. With every touch, the nerve endings fire more pleasurable energy into their center, where two nipples are steadily growing bigger and more erect.

I let out a deep moan, or maybe Kathryn did that in my body, but who cares. We're completely in sync now, caressing our still growing chest and sending our shared body into heights of pleasure. The only unwilling participant is my dick, who is still tired from all the action going on earlier today. Whatever, he's going to find himself outclassed by my two new best friends growing on my chest.

Sadly, the water temperature slowly starts to decline as the boiler in Kathryn's apartment is running low. Hey Kathryn. You know what we actually came in here for?

"Oh right, your ears. I guess there's still enough time left for that." She gives my ears a half-hearted scrubbing, which to be fair is more than I ever do when I'm in the shower, and turns off the water before it gets completely cold. Stepping out of the shower, her gaze falls onto the towel rack. "Dang, I didn't think to get more towels out before I got us in here."

Well, let's see how fast that Quick Drying thing is. I guess that should carry over with you into my body too.

Kathryn shakes herself (myself?) like a wet animal in front of the mirror, causing our boobs to jiggle adorably. "Neat, all the moisture seems to just go away when I do that."

Can you release me now? Not that this wasn't fun, but I prefer to be able to do stuff with my own body.

Kathryn walks us out of the bathroom and over to the bed, where the Custom Girls! app on my still unlocked phone is flashing a notification. Before I get to say (or rather think) anything to Kathryn, she picks up the phone and taps the notification icon.