Unless something similar to what you're imagining happens in her sauce, power through the sauce. I'm sure if you watch enough of the sauce, your imagined thoughts will be more similar to the sauce than anything else.

hey it happens to me also man, i though i was the only one !
it only happens when i imagine real life people or situations, never when i think of my wife
i have a small theory: those kind of thoughts only come when you overthink stuff or when you feel pressured or when theres something abnormal or something

>>8845
All comes with experience, try develop your Imagination.
for example listen Audiobooks

>>8852
Or read visual novels.

For me, I have another problem. My thoughts get mixed too often than what I wanted, and my waifu isn't an exception. It might be a side-effect to thinking too deep.

The problem is, I've been with my waifu for quite a few years already. I've seen plenty of her source material. It's just my stupid brain mixing her with the worst of the worst. Let's just say I'm walking down the street and some ugly hobo walks past me. I look at him once and then the extremely vivid scene of my waifu getting raped plays until I pinch or hurt myself to stop thinking. I have another theory, is that I'm a masochist. It's possible, but even if I'm a masochist, I'm certainly against anything negative regarding my waifu. How do I stop this?

I think it's feature of mind (or bug actually) and anyone can face this problem, I had that too. The solution is in your willpower and simple technique to remodel "corrupted" scenes.
But sometimes this bug just stucks in head, and any retake fails. In these cases I just temporarily break the, err, waifu connection, just let her out for a time.
first post here. sorry if my english isn't good enough

>>8852
>>8853

Or even regular novels.