Probably computers, recent world events, cars, toys (yeah i have little kid toys like slot cars and RC cars), making fun of each other, ways to annoy people, and weak attempts at humor
every now and then i do discuss beer but its pretty rare
sex is something i discuss with my gf only =P
i never really discuss sports
Sometimes i discuss women but its more of a that girl sucks, that girls is a dumbass, that girl smells funny, how the hell is that girl famous....And i talk about men the same way so its not sexually orientated discussion.