First story: guy wishes to become a guy's wife and the perfume turns him into a girl. Second story: two boys. One rejects the confession because I only love twintails. The other boy tries wearing a twintail wig, and goes to stalk the boy. He sees a pretty girl at his house who beckons to him, and he wonders if it his sister or his girlfriend. Once inside she kisses him and reveals shes his crush who has urncrossdressing as a hobby, and is happy he likes crossdressing too. Third story: guy makes wishes, i.e. For sex, to see boobs. Gets turned into a girl and has sex with the alien bunny man. Fourth story: theres a drug that turns a wolf into a sheep. It feminizes you.
There is a sequel to this vol. http://www.cmoa.jp/title/42911/vol/2/