i've had a lot of male teachers i wanted to get down with but they never popped a boner.
although not exactly what was asked for- i remember in junior high i went to the fair with my boyfriend, we were like 13 and he got a boner on the ferris wheel due to my dirty rubbing. he then had to sit down for like 20 mins because his balls hurt. i don't think he'd ever had blue balls before. he thought it was cancer i think.haha...