When you mentioned Endurance I thought that's it because my females are really just breeding stock, never being part of any serious leveling, but the Dark Elf, inflated and immobilized for 13 days, actually had max Endurance (4).
When your females blow up, what is the intended system for them to deflate again? Because it looked like they were just stuck.
Since the guys were never incapacitated because of sexual interaction I would say it felt better. The flavour text could mention them blowing up more, as long as they maybe wash themselves over night and are able to walk.
If you have a cum inflation kink when it comes to guys, it looks difficult to produce the more hefty flavour texts. You would have to keep low Endurance guys around and hope high Beauty, high level dudes come with a low endurance preset.