I don't know about real true love. Love can get confused with lust.
I was living and sleeping with two f buddies (they were best friends) individually at the same time for like 18 months when i thought i loved both of them after a while. Officially we were just plain friends in a 2 bedroom apartment with me on the sofa bed. They were surprisingly really open minded with sharing me, it didnt bother them at all as long as their friends and our families didnt know.
Steve was like totally amazing in bed but quite ugly and a bit of male slag but he was a really good laugh, someone i'd never take home to meet my parents. Tom was lovely, nice to cuddle upto, average-good looking, really sweet down to earth, settle down and do anything for me type, best kisser but in bed he was average at best - every time i was reaching orgasm he would climax and go soft i almost never orgasmed.
At first it was just about the sex and friendship, there wasnt any proper jealously going on, i could sense Tom was annoyed from the ever-lasting bed banging coming from Steves room. Eventually my parents found out i was sleeping with them which didnt go down too well especially when my mom asked why is there no condoms around. Tom showed me an engagement ring, then things got awkward, i had to move out.