You decide you need to call the doctors, right away. You need help or at least someone to talk to about this. These feelings, these confusing thoughts and your inability to distinguish actual reality. I mean, you called your own father for son in a text message. You looked down at your current body. The fat, hairy body of your father. The smaller penis. You knew this wasn't you, yet it felt like it was. Like the young man you texted with was indeed your son and that you were jealous of your son's large member and his sex life...
It was the middle of the night, yet you hoped someone would pick up. Someone on night duty. They could hardly leave an experiment like this unsupervised for hours on end, right? Turned out you were right. Someone did pick up.
"Hi, it's me... David." You said. Why did you call yourself David?
"David?" The voice asked, surprised. "We have John under this number. Must have been a mix up." The doctor said.
"Actually, No, I AM John. But the fact I called myself David is part of what I really need to talk to you people about" you said.
"Alright, go on... What are you on about?" The doctor said, sounding somewhat disinterested.
"Well, the short story? My so... My father texted me a video of him.. doing stuff. With a girl. It made me jealous. It made me think he was my actual son... That I was his dad. That I was David. He seems to have similar thoughts. He called me dad." You said, almost crying.
"Oh? Now that's.... interesting" The doctor said, now sounding much more intrigued. "This is new to us. But this has to do with the subjects being related. That's the only new parameter!" The doctor said, mostly speaking with himself. He kept ranting to himself for probably 3 minutes about how he needed more data and whatnot. Eventually he spoke to you again. "We're retracting the agreement of moving you out of the house if you feel anything towards your mother... Scratch that. She's your wife now! You're David! I'll have a chat with May about this, but I think I can persuade her to play along. We want to know just how far this will go, if we play along. We'll double... no, Triple your pay if you play along as well. Don't fight the feelings of being David. Don't fight the feelings of jealousy towards your son. Let them take you over. Of course you won't be paid at all if you don't do as we say" The doctor rambled on at a pace you could hardly keep up with, never letting you answer.
He was clearly... excited... about the quite disturbing thing that was happening to you. You now realized that there was a reason the pay was good and why everything was so secretive. These were not your run of the mill scientist. These were actually mad scientists. This had probably not gone through an ethics board and the fact it was all secret meant you couldn't really tell anyone. Why would anyone believe you? You felt tears streaming down your face. All you could do was play along. Maybe fight these feelings in secret, but you had a feeling that they'd figure you out if you tried to go against this too hard. You were under duress and experiencing some kind of identity death. But the doctor didn't care at all - he only saw the data he could gather. You had cried out for help and instead of a hand helping you up, you got shoved down even harder. You realized you hadn't listened to the doctor in a while as you heard "...Good night, David. We'll chat with your son and wife about all of this!" and a 'click'.