What IamSissy offers
IamSissy is a tube site devoted to exactly that fetish, and its own tagline is blunt about the audience: "ONLY SISSY videos for transsexuals, shemales and straight boys who just love big dicks." Trans performers, femboy material and futanari clips all appear, but the sissy angle is the constant.
The site runs on a conventional tube setup: videos play in the browser, and IamSissy positions itself as a free sissy porn tube rather than a paid membership site, promising more sissy content than newcomers expect to find in one place.
Browsing sorts through category pages, with femboys, ladyboys and futanari sitting alongside the core sissy-and-shemale material, and the hypno side gets its own push — the site tells visitors to watch sissy hypno videos daily "to become a totally obedient girl." That framing points to the strongest use case: viewers already invested in sissy training or hypno fantasies who want a tube where the fetish is the main event, not one buried category on a general trans site.