here lets list down the mane 6 personalities in a nutshell (in tom's perspective):
twilight sparkle: too much of a bookworm to get laid
applejack: see rainbow dash
rainbow dash: not sure if straight or in lesbian relations with AJ???
fluttershy: waaaay too damn shy
pinkie pie: horny horny horny
rarity: not horny but pretty slutty
here let's list down the mane 6 loveual preferences in a nutshell
twilight sporkle: impossible
applejacker:
dyke/biloveual dendrophiliac
rainbow dyke: dyke/biloveual
buttershy: heteroloveual
punkie pie: anything that moves
rarity: heteroloveual