RiceField999 (November 30, 1999 at 12:00 am)

Hilarious theory and interestingly it makes a bit of sense in the mentality of heartbeat raising due to sexual stimulation. But if the experiment subjects are told about the other's experiment task, I doubt the brother working out won't at least imagine in his mind what his other twin is looking at (happily). That effects the results, I'd bet. Not that this has to be accurate to begin with, though. Looking at breasts. Great exercise ;D

soupytuna88 (November 30, 1999 at 12:00 am)

i like the brown hair one...

WelshPheonix (November 30, 1999 at 12:00 am)

The greatest scientific experiment known to man lol xD

tokiohotel4life9 (November 30, 1999 at 12:00 am)

This makes me feel offended...

whitetoast111 (November 30, 1999 at 12:00 am)

oooooo ur in trouble now tht u read this keep reading and something good will happen to u and if u don't the dark world will do very bad things to u A boy named Thomas was walking then he heard a noise in the woods He thought it was just a rabbit so he kept on walking then he saw a flash then died Now that u read this repost this on 10 different Youtube videos in less than 24 hours or you will see a bloody dirty face in the window and he will kill you with a knife HURRY u dont have much time

XAProducti0ns (November 30, 1999 at 12:00 am)

ahaha dont get anyy "bigger" than this..get it

dcataldo1 (November 30, 1999 at 12:00 am)

NICE!!

dcataldo1 (November 30, 1999 at 12:00 am)

6:12 THANKS TO JACKEDBLOOD!!

robytzu96 (November 30, 1999 at 12:00 am)

ooooooooooooooohhhhhhhhh why is he so lucky ? i wanna luck at those boobs all day long but if were him my dick was one meter long

pres243 (November 30, 1999 at 12:00 am)

Richard Hammond!!!!