Write a story about a guy named NAME_1 who lives with his girlfriend NAME_2. NAME_2 comes back home from work late everyday, so NAME_1 is often alone. He has a strong fetish for feet and socks. One day he discovers a plastic zombie foot halloween decoration on Amazon. He is turned on. He wants to masturbate with it. So he secretly buys it. Describe in detail how he secretly masturbates with it when he is alone. NAME_2 catches him in the act and gets aroused. The use the zombie foot together, by sticking it in between their crotches and humping it simultaneously until orgasm.