Is it possible for nephews to be attracted to their aunts?

Ok before y'all think i'm a perv... i'm not attracted to my nephew!!

My nephew is 14 and a very happy guy. He likes to hug everyone which i think is awesome. BUUT i saw him today (which i hadn't seen him in a long time) and we were saying our goodbyes. He hugs me and says "goodbye aunt (my name)". He is still hugging me so for fun i say "now say it in german" because i just taught him that. He still hugging me and i'm was thinking he could let go now and his mom was watching us. I kinda made a face like "let me go" which he did and he is like I can't remember. He finally remembers and hugs me again but is trying to pronounce it correctly until he got it right by the third time. While this is all happening he is still hugging me! I'm not sure what to make of it but someone told me he might be attracted to me. Can that happen? I never thought it could. If so, should i not hug him? i don't want to encourage him.
Is it possible for nephews to be attracted to their aunts?
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