It took a moment, but eventually it sank in. Keith betrayed you. He was willing to risk destroying you to avoid giving you a little sexual gratification for the next 80ish years, when he literally has the lifetime of this planet to do whatever he wants. Furthermore, after you are gone, he can change anything about himself and remain young and healthy forever. You didn't mean to do this to him, and never would have done it if you knew the consequences, but he knew, and he pointed at you and clicked anyway.
Without thinking it through, you pointed the car keys at Keith and clicked. A blurry shimmer passed over his body but there was no indication of what the effect was.
"What did you do to me?" Keith asked sounding concerned.
"I don't know!" You huffed angrily.
"Well what did you want to happen?" Kevin asked beginning to sound alarmed. "The last time you used those on me without a clear plan, I lost my humanity and became your slave, what more do you want from me?" After you both stared in silence at each other for a long moment. "If you weren't thinking anything, what were you feeling?"
Your face twisted with sadness, anger, guilt, and fury. "Yeah, I did this to you... without knowing it would or even could happen, and I tried to figure it out before I risked turning you into something with no personality. You just used them on me, risking my life, intentionally. You literally have eternity, of looking and sounding however you want, being young and handsome forever. You may even be able to replicate sperm and still have kids if you wanted because you operate on a fucking pocket sized fusion reactor. I will age, I will get sick, and I will eventually die. You risked my minute of life, on purpose. So, you want to know what I want from you? Some fucking consideration for starters! I didn't ask for this situation any more than you did, and I am basically responsible for killing you, my best friend. I wish you were unable to take action I would disagree with, and I wish I could use you to to change my body as easily as you change yours because you shrunk my goddamn cock. No amount of pushups will fix that and I don't trust these, and I especially don't trust you right now."
You dangled the keys in front of Keith for emphasis, who looked simultaneously ashamed and hurt. "I'm not dead, I'm just not human now." Keith crossed his arms, shrunk against the wall, and wiped a tear from his face. "I'm sorry, I didn't see it like that when I used the keys on you."
What you said was all true but you were more than a little harsh about it. With a sigh, "I'm sorry too. I was angry and scared, and I'm trying to do the best I can." As a show of forgiveness you took the three steps over to Keith and embraced him in a hug.
It's hard to explain how, but he felt more human. His shirt was not skin tight and his pants formed wrinkles. After a second, Keith returned the hug and you swore you could feel his muscles move under his skin.
"At least we learned something today." you said, not wanting to get his hopes up but allude to his ability.
"What's that?" Kevin asked.
"Androids can cry."
"Dick." he replied with a chuckle, as you pressed your ear against his neck and ruffled his hair. That's when you heard it. His heartbeat.
Alarmed you pushed him away and put your hand on his chest, trying to see if you can feel his heart beat. Kevin was at first confused, but then you felt him gasp.
Looking up at his face he was watching your face, intently with confusion. "What?" you asked, brushing at your face.
Keith slowly reached out and caressed your face gently, then jumped away from scared. He frantically started wiping his hands on different objects and looking at them intently.
"Kevin, stop, what are you doing?" You, unintentionally commanded.
Kevin halted, thought for a second, "I am trying to compare responses to contact. You will understand better if I show you. May I?"
"Yes." you blurted out, confused. Kevin walked over and grabbed your hand holding it palm up. He then proceeded to drag his finger up and down your arm several times as you both watched intently, You were about to ask what he thought he was doing when suddenly his finger began to leave a trail of what looked like blood. But unlike blood it dissipated a few seconds later. Kevin continued as you touched it feeling nothing. Kevin then did the same thing to the wall but didn't leave any marks. Kevin snapped out of the trance and looked scared as his finger tips filled back out.
"Android persona? Are you there? Do you know what changed?"
"I am no longer just an android," Keith responded . "I am a nanobot swarm capable of fully emulating living beings, modifying existing lifeforms, and objects, I am able to consume anything for sustenance though will need a variety of compounds, and am able to merge with you to receive commands, to put it simply, telepathically"
"Merge with me?" You asked warily rubbing your arm where Keith touched you.
"Yes, you wished I were unable to take action you would disagree with, and you wished I could change your body as easily as my own. This will be possible once I replicate more within your body. You should eat soon."