hehe, when i see artwork of penises that size (oddly enough I see it more often on artwork of girls than on guys)... I can turn off the part of my brain that wants to know how many gallons of blood it must require to become erect... but I can't seem to turn off the part of my brain that wonders how on earth they'd be able to really stimulate it.
Other than masturbation and/or assisted masturbation... I mean, she'll never stimulate the entire thing at once even with a helping pair of hands hehe.
Oh well, I guess if her breasts grew to the size of beanbag chairs, then she could fully bury that giant monster into some someplace soft. I'll just imagine that in her future