There's one fact which you should know about girls and bananas. Whenever girls see a banana they think about a penis. That is because it looks very much like one and most of us have at one time or another played in some way with a banana as a dick.
Sometimes just as a joke, pretending to be jacking it off for the other girls to see, sometimes to show how big or small a dick was, sometimes to make fun of guys. But sometimes, when alone, most girls have also thought about using one in our mouths or pussies. That was usually when we were younger and did not have dildo, but still, the thought has always been there.
And, I suspect whenever you see a banana, you also think of dicks, don't you? Have you ever pretended to suck one?