lol I know you're joking but I really hope no one's understanding of human anatomy is poor enough to think that his cum is going anywhere near the fetus.
I didn't like the scene either but not because she's pregnant. I just found it a poorly shot and kind of boring. They didn't have great chemistry and I was surprised to see him take so long to get hard. As stale as his vids with Chad can be, he never has wood problems. But like I said upthread, if you're not into it because she's preg, just scroll.
I wouldn't discount the fact that part of what makes him unique is that he has a loyal group of women followers. There are a lot fewer of them but they are always willing to spend money on him and his content. They're less likely to be put off by this because women's bodies aren't foreign to them and they know that pregnant women are just as sexual as everyone else.