You're referring to the "Schlongs of Skyrim" mod for The Elder Scrolls V: Skyrim, specifically the Light SE version. Here's some information:
At its core, is a stripped-down version of the original "Schlongs of Skyrim" mod. While the original mod is a complex framework that includes MCM (Mod Configuration Menu) menus, various "addons" for different races, and a script-heavy system for managing anatomical states, the Light version focuses on the essentials. schlongs of skyrim light se
Generally, body mods should be placed relatively high in your load order, but below any general mesh or texture overhauls to ensure they aren't overwritten. Integration with Other Mods You're referring to the "Schlongs of Skyrim" mod