if you grow seeds from a pod that came from a hybrid plant that is possible..

crossing does not change the plant that is growing. the seeds that are taken from the pods of the crossed plants will grow the crossed variety..

I understand they will not grow true from the original. You will get a completely different strain. I get that. But two different mutations on the same plant? In other words, the cross will create its own variety, but won't all the fruit on the plant be the same weird strain?

One of my Carolina Reaper crosses taste like a Reaper minus the heat. This hybrid is like eating woody tasting garlic. They did keep the Reaper shape.

Yes you can have 2 different peppers on the same plant. Last year my cayenne had cayenne on some branches and bhut on other branches. It really pretty cool. The whole branch was one or the other but not both on the same branch

I didn't know this was possible. It sounds like a graft. Maybe two seeds germinated and grew up together and grafted together?

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Yes you can have 2 different peppers on the same plant.

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Not sure that is possible. I would have to see a pic. Grafting maybe would explain it but in all my years of growing, I have never seen one like this. 1 on one side and 1 on another just does not happen.

No graft. Seeds where saved and started myself.

Pics or it didn't happen ;)

Hybrid Banana pepper/Carolina Reaper cross - No graft
Crossed in 2014, saved seeds, grown this year (2015).
Stunted growth or genetic mutation, anybody's guess.
Although the stem looks the same, the calyx and shoulder are distinctly different.

As others have suggested, I would have said it's impossible.

I plan a taste test on my youtube channel. I'll let you know. I may be proven wrong!

Yep, let us know the heat content.

I'm far from an expert (and I guess anything is possible), but my guess is that that's a "runt" pod

That's my first guess, But I've been known to be wrong (many times) LOL