Why do dogs sniff butts?

I've asked a similar question(which was "why do guys like boobs so much" please answer if you know why) and now I want to kno...

My boyfriend had to put his dog down today, what sometimg I can do for him to cheer him up a little?

Is it a cute idea to go to the dog park with my boyfriend and my little dog for valentines day?

What is the best kind of butt? I have my favorites but I want to hear from every1 else what their favorite is

I wonder if women like to see a man with tight butt because I really have a good butt.

Okay dudes?! You guys prefer... Big boobs? Big butt? Or a pretty girl with neither?

Ok so my friend likes this guy and his chin looks like a damn butt!! What should she/me do about this?

What are some exercises that give you a firmer butt and thighs??!?! My lil sis just called me and asked me and I get mine fro...

Lol I dont get it, why do some guys like big butts on a girl?

When I wear jeans or pants people tell me that I have a good butt, I like women like my butt but men tell me the same I feel...