OK, a bit of overexposure on tv recently & a bit of a MILF, but after a beer & curry bet she does dirty things!!
Not really, if I had 7 of the lucky ladies on the go, it would be MILFS' suggesting ownership and plural. We coould have a MILF, or MILF's, dependant on numbers.
Then it should ex_donkey_man's MILFs since you own the MILFs. Also the acronym MILF should not properly be pluralised. It's Mothers I'd Like to Fcuk, not Mother I'd Like to Fcuks.