Stan Marsh: You see, Mom, all the kids at school were told to bring a picture of their moms' breasts for anatomy class.
Eric Cartman: [as Stan's mom] I don't know, son, that sounds awfully strange. You cannot have a picture of my hot breasts.
Stan Marsh: But Mom, my teacher will...
Eric Cartman: No, no, no, no. You got to go...
[in soft voice]
Eric Cartman: but mmoooom...
Stan Marsh: But... Mo...
Eric Cartman: But Mmoooom...!
Stan Marsh: This is hopeless.
Kyle Broflovski: Why don't you just sneak into your mom's closet and get a picture when she's changing clothes?
Stan Marsh: That's sick, dude, I'm not taking a picture of my mom's boobs.
Kenny McCormick: [muffled] I'll do it!
Stan Marsh: No, you're not doing it either.