Recorded in 60 FPS. Episode 5 of the Step-sister Series: You know the saying that men think with their c*cks? Well, in my case, it's becoming literally true. My family physician Dr. Harper Ryan made a house c*ll to read my medical report from a team of neurological experts. The bad news is that the effect of having so much frequent s*xual activity with my step sisters has caused my brain to start degenerating.

At the same time, they've detected an increase in brain cells in the head of my c*ck. It's a rare condition that cannot be reversed. I haven't been using my brain very much for anything besides s*xual activity, since my step sisters won't let me have the time to do anything else. So my brain is breaking down, just as when you don't exercise your body's muscles. Since my c*ck is the body part that has mostly been used in the past year, that's where new brain cells have been stimulated to grow.

Essentially, my brain is literally migrating and relocating from my head to my c*ck!

Dr. Harper Ryan has an experimental treatment for this. She's going to accelerate the process of brain cell development in my c*ck by regular, weekly s*xual stimulation administered by her. She said since the degeneration process in my brain cannot be stopped, the next best thing is to encourage the growth of new brain cells in the head of my c*ck since that has already begun. That way I will at least have some cognitive function, but it will be mainly focused on s*xual impulses since my brain is regenerating in my c*ck, and at a smaller size (thank g*d for that at least. If my brain regenerated at the same size as it was in my head, my c*ck would explode or get too big!).

I won't be able to think about much of anything else but s*x, but it's better than being stuck in the transition stage that I'm in right now where my brain and my c*ck are competing for control over me.

My doctor's first session involves pressing down then bouncing on my c*ck with her big, soft, round *ss, before grinding on it harder to make me release a big, thick load of c*m. There's a good, long view of the gooey white mess sticking to her *ss.

*ss Cr*ck Snack with Harper

ss Crck Snack with Harper