I was working on an essay in English III and got a boner! GOD DAMMIT! Now I have to non-chalantly flip it up between my pants and stomach! GOD DAMMIT. Can get hard but then you lose your erection before you want to; OR cycling a lot can affect your erection because of the pressure that's being applied to the area around your penis. . Bartle-Haring, S., Day, R. D. and Gangamma, R. ().