Yes, there is nothing hotter than a toned tummy, though no body builders, eww, just the line down the centre and the shaping around the edges, no actual six pack, it looks a little horrible in my opinion.
Depends on the guy, and the girl. It's all very complicated. Having a six pack doesn't automatically make you "hot" or "gross." It's all very complex and is more how well it works with the rest of your body.
truthfully i like a girl with a flat smooth stomach no muscles just smooth.....smoooooooooooooooooooootttttthhhhhhhhhhh am i being creepy enough how bout i wiggle my eyebrows a little bit while im saying it too- smmmmmoooooooooooooooooooooootttttttttttttttttttttttttttthhhhhhhhhhhhhhhhhhhhhhh
speaking from a guy... if you have a full on six pack... then no... if you skinny and have a very small little one then its sexy.... i dont like it when the girl im dating has a like bulging six pack and i dont