Does this girl have big feet or not.?

im 18 ima guy im 5`4 and i wear a size 7 shoe. the reason i hate it is because i ws sitting on the couch next to my younger girl cousin who is 15 she is 5`6 but when we were playing footsie sole to sole she said omg your feet are so tiny my foot only came up to her the bottom of her big toe i was so embarrased but she said that`s ok becasue im taller than you what do you think about this. would you joke the same way is you did that to me. She said she`s a 10 in mens. I was just shocked I now i have small sized feet but geez. how do you compare to me