[NorthMountain]

Dictionary dot com would seem to support the use of two "t"s in "sluttification".

They offer "sluttish", "sluttishly" and "sluttishness" as variants of the base word.

[Mrs. Don-o]

You may be right. I didn't go to a dictionary, I just googled "slut(t)ification" with both spellings, found roughly 3x more results with one "t" than with two.

So I suppose it's down to whether you think orthography should be descriptive or prescriptive.

To pour equal opprobrium on the unchaste gents, I suppose it could be called the "horn-doggification" of sex.