Not bad, but it's looking a little tight there. I think we're past the point of it showing a bulge, and into the "Green Lantern Body Condom" zone. Then again, at least you'd never have to worry about it breaking, I can't think of another sitiuation in which your willpower could get any stronger.
In brightest day
In blackest night
no semen shall escape my tights
let STDs and all their like
Burn from my power, Green Lantern's light!