I share an apartment with my brother who is 28 (we're college students). My room is next door to my brother's room. Sometimes I hear my brother masturbating at night (I know he's masturbating because I hear him moaning). I feel bad to say this, but I get turned on when I hear him masturbating. I told my brother that I hear him masturbating sometimes. He denied that he masturbates. He said that the moaning and dirty talk that I hear is from porn videos. I know he's lying (I can tell the difference between sounds from the home and sounds from a t.v.). A few days ago I heard my brother moaning again and I knew he was masturbating. To prove to myself that I'm right and to satisfy my turn-on, I spied on my brother masturbating (I spied through the vent on the wall that separates my room from his room). My brother was lying on his bed with his legs wide apart in the air. He was stroking his cock with some kind of oil and pulling his balls. His cock was erect, huge, and curved (how weird to have a curved cock). He was moaning "ohhhhh". He was talking dirty to himself (weird) and saying stuff like "suck my cock". He made a lot of weird sounds like "ssssss...ohhhh". When he was close to cuming, he said to himself "my cock milk is coming, oh sweet Jesus". Right before he squirted, he screamed "I'm about to squirt my cock milk, suck my cum". He squirted out a lot of milky cum. He kept stroking his cock until all his cum was out. Now I know that my brother has a weird curved cock.