Responses
it can but its not just cos its done raw its usually specifically if you leave the cum inside for a prolonged amount of time instead of getting it out asap. It's not something that happens to everyone tho its pretty case by case
Semen is basic (pH-wise) so it’s an irritant to the intestines… some people are probably more sensitive to it but it’s honestly not that big a deal.
Does condemless anal actually cause stomach upset? I only ever see it mentioned in bl, never in western books or basically anything outside Japan