Except for the male scent it would probably be as enjoyable to fuck as any female arse.
What if he used women's body wash in the shower?
Oh, please, stop tempting me!
The problem is that the effectiveness of the woman's body wash would reach a half life every so often and eventually, even quickly, the maleness smell, which is being constantly replenished, would overpower the "perfume", especially if you have dog-like olfactory characteristics like I do.