Is this normal

ok so I have this arm fetish I love being grabbed by the arm by my bicep I also love having my arm twisted behind my back I have thing for handcuffs too but I will save that for another time I also love to grab a woman by her arm I see a woman in a tanktop and I get a hard on looking at her arms I just wanna grab them just to see If I'm strong enough to stop her from pulling away from me so am I crazy or what