Someone correct me if I'm wrong but it is indeed the junction where it curves. The musculature is different so it's a bit tighter and there is some debate that there is a sphincter like function even if it's not the same as the regular hole.
Also common injury point if too hard too fast
July 29, 2025 at 4:36 AM
Someone correct me if I'm wrong but it is indeed the junction where it curves. The musculature is different so it's a bit tighter and there is some debate that there is a sphincter like function even if it's not the same as the regular hole.