My opinion is mixed between Jaune and Ruby/Phyrra the two girls are as close to Jaune as a great friendship pair. My thoughts are that Phyrra and Ruby develope strong feelings for Jaune and they take notice of each others feeling for him and begin competing for his love, and if Jaune plays the role I think he will play (the igneront, oblivious, fool that says "I have no clue whats going on with those two should I be worried?) . Just like every other anime guys who have more than one girl falling for him, and he has no idea why or when it happened. Than Yang being bold as she is jump in on Jaune (In front of Phyrra and Ruby) Grabs Jaune and says, "Come on "Handsome" Puck her up!" (Smooch) (Jaw Drops). Wooooo! And the crowd shouts, "AWWWW SNAP, NO SHE DIDN'T"
Is what I see would happen, But seriously in terms of first kiss the idea is still mixed with either Ruby and Phyrra either one could get him.