From the series Kinnporsche – Season 1 Episode 4: ‘Episode 4’ (1×04) | Produced by Be On Cloud
Porsche knows Kinn has feelings for him. A big clue to it was overhearing the conversation between Kinn and his “friend”, the “friend” said to Kinn “You never seem to change. Never let me kiss you”. That indicates Kinn never kisses his boy toys, only the ones he trully loves.