I give him a handjob and he cums in my new stockings

Why would guys like us to give them handjobs so much? Well, I can imagine that but for example they cum in places as strange as in a shoe, in the hair, in the stockings, in the thong..., I really don't understand that, I suppose it's pure fetishism hehe, for example, I don't mind at all giving my husband a handjob and letting him cum wherever he wants like when it's the other way around, I have a great time in both cases.