Do i mention it?

Hey Guys and Girls, I need a little help or advice.The whole family was over this christmas and when everyone was looking in pottermore which patronus everyone have i helped my little cousin(14) with it because english isn't our native language and the translation was aweful. And when she gave me her phone i saw that she googled lesbian porn ... Lots of it. I am gay myself (26m) and my family is fine with it and accept me and support me in every way but her parents are way more conservative... She ist already not really the favourite child.Should i do something? Mention it to her? Or just wait and let it because she is only 14 and maybe she is just... exploring?!What do you guys think?