When i first slept with my boyfriend, he had slightly bigger than average penis size, but eventually, regular condoms wouldn't even go on, so we upgraded to Trojan Magnums (large). They fit much better, but after a few months they became too small. We tried the Magnum XL, and they were slightly too big. But now after a few more months, he has grown into them and they fit fine. But now I'm afaid he will out grow these. He just keeps growing, and i know hes not taking any type of male enhancement. And he hasn't really gone through any growth spert? What the hell is going on? A girl can only take so much. lol.