Because you know they move around a lot. They have that shoot from the hip kind o look. Peter from Family Guy=NO GOOOD. Ryan Gosling? ****ing hot. A girl is likely to assume he works out a lot or spends a lot of time having sex. Other assumptions are made about his fast metabolism and his stamina and the health of his body. And who wants a couch bum anyway? My boyfriend is nice but a bulk football player. I keep looking at thinner though not necessarily body percentage wise, slimmer guys. I mean you can't fake desire or passion right?