6B is a pencil with soft lead (“B” = black); HB is right in the middle (your chewed-on yellow No. 2 pencil is an HB); 6H is hard. Really hard.
“Lustlab Ad of the Week” is a comic adaptation of one of the week’s kinky personal ads in Seattle alt-weekly The Stranger, and I post them here every Wednesday. See it on their site here. LUST, the “Lustlab Ad of the Week” book collection, is scheduled to be released with Fantagraphics Books in January 2008.