Watch British Underwear Party 1 for Free: How to Stream the Movie Online at 123Movies. . British Underwear Party invites you on a bareback field trip with a bunch of horny English school lads. The boys are sat around a table in their school uniforms when Paul admits to student teacher Will that he has lost his school tie. After the rest of the lads have left the table, Will decides to teach Paul a lesson and demands that he strip down to his underpants. British Underwear Party is sure to please lovers of young twinks, school uniforms and underwear fetishists everywhere!