Well I mean, I'm sure a lot of guys would get a turn off if he's in the middle of doing it and all the sudden they put a fucking male all the sudden. Unless some guys don't mind it or is into that shit. Personally it's a huge turn of for me. I don't care for NTR or cucking honestly.
Dunno if you’ve noticed but almost all the mother OC’s are married, including the one in his large project. Even his old game Tentacular is about slowly breaking a married woman and then fucking her during a webcam call with her husband.
Pretty clear indicator that this is one of the genres Jack would like to do.
Personally speaking I didn’t see Barnyard Bash as NTR because:
A) Anne is already cheating on her husband with Cole
B) The horse is just running on animal instinct, this isn’t some grand plot
C) It was a gold nomination script, so there’s a good chance this is never followed up on, the next time Anne features could be something completely different or back to the usual son bonking
D) We already know Cole watches Jackerman videos. In the first Southern Hospitality, we see he’s a member of Jack’s discord server on his computer screen, he’s a fan of this content, just like the rest of us. So him getting a boner isn’t cucking material, it’s him enjoying the show, as we all were.