For the carla feeding scene, that should happen at a certain level of concern, and if you are in bed (although I believe there may be a bug that causes you to count as in bed when sleeping with alex and haily.)
And I think it's fine to unlock Alex with less blowjobs if she swallows. The game is large and can be a bit mazey, so an easier path forward isn't a bad thing.
I don't think I explained my question with the carla feeding scene very well. I got the scene to trigger 4 times, by meeting the requirements. However, 3 of those times she just stood there and watched the mc sleep, but one time she actually got her tits out and tried feeding. What's not clear is the mid-scene trigger that causes one thing to happen versus the other
Edit: as for the alex scene I strongly suspect that the counter might be strictly broken, since upon further testing I also got it to trigger with 3 facials, it would probably be good to double check that the greater than sign hasn't been flipped, or some other issue with the logic that could result in other bugs
