Wow u really compare everything. I wouldn’t count c15 as “interrupted sex scene”. Zhengyan wasn’t in his right mind and being aggressive, it would have been rape again if no one interfered and I’m pretty sure zhengyan wouldn’t wanna to fuck mc in public like that. It’s clear you only like zhengjia but unfortunately for you zhengjia scenes will keep happening but so will zhengyan scenes, we just gotta wait
Yeah I just reread it to compare them. At first I liked both the twins but seeing this favouritism, I started noticing Zheng Yan more . Like see around the first chapters, Zheng jia and uke even went to the amusement park, aquarium like a date, got intimate in the closet (in the parent's house) also that steamy blowjob in the tub and now in the office and no one interrupted them unlike zheng yan. Even when having sex inside the car with Zheng Yan, uke looked at his lips and thought of Zheng jia and didn't kissed him while he kissed the red head while having sex the other day. I'm happy that this poly it's just that both ml isn't equally that's what bugs me.
I get what u mean with feeling like zhengjia having more screentime than zhengyan. Zhengjia always follows mc and gets all touchy when together. I still wouldn't consider it favoritism from author and would say its kinda in line with their character since we got a sunshine and stoic. Surely the sunshine one will be more clingy than a quieter reserved boy. And if zhengyan is shown to be sweet and clingy one day, like that chap when he was drunk, unlike zhengjia whos always clingy, doesn't that have more impact? All the scenes u listed with zhengjia kinda happened after scenes with zhengyan. I feel like the way u gave ur examples is almost to the point of comparing the amount of eye contact made each chapter or the number of words spoken to each other in each dialogue box. I feel no reason to obsessing over the number of interactions between each twin, because in the end, mc will still sloppily kiss both of them.

Why is it that when it's the red hair guy getting intimate with bottom, no one interrupts them but when it's the black hair, someone always interrupts them during intimacy?