The true yuri is hallucinating an entire dramatic love story after spotting two women giggling together on the bus.
Let me tell you a tale: I was riding back on the bus from Epcot at Disney and there were two women with a bag of sombreros, drunk as skunks. Apparently their friend was starting a mexican restaurant and promised them free tacos for life if they got her some sombreros, hence the sack of hats. They gleefully shared this story while clinging to each other, and more than a couple times straight up kissed right there.
Now I ask you, was it yuri?