I love smelling my armpits?

i am a guy (discreet gay) and i love to smell my armpits, i love to look at it in the picture. i also love looking at other guy's armpits. not all of them though, but some tends to have very attractive armpits and i think i want to smell others' too. i also love to smell my underwear after i have used it, specially after i workout in the gym. i also dreamed of smelling other guy's underwear. the thought does not bother me frequently. i only feel it when there are cute/hot guys around. i am also fond of smelling my underarm while watching TV. 3 to 4 times usually. is there something wrong with me?