"why do you find they size of my penis so interesting?" "why were you lookin?" or if it's a girl you've done it with... "it aint small ur just a loose!"
"Well put your mouth around it, it'll get bigger" "Tell your mom to stop fucking me so hard then, it wont be tired all the time."
are you asian or something? cause i think you're stuck with it if you're asian. my best bro is asian and even i crack on him for having a small dick. but yeah. i figure the only way you're really gonna be able to stop anyone is if you blow off the handle/start a fight next time. ...at least push whoever says it next a few times.