The room buzzes with excitement as the instructor begins her lesson in swallowing cum. She starts gently, taking a small load on her tongue, swirling it around before swallowing. The sissies watch, transfixed, as she ups the ante, taking larger and larger loads, showing them how to relax their throats and breathe through their noses. She teaches them how to milk a cock with their hands, how to take it deep without gagging, and how to make their partners cum hard, leaving them gasping for air and covered in jizz.