Mental Trash and Victini

[FunnyBear]

Malamar - Mental Trash: Your opponent flips 4 coins. For each tails he discards a card from his or her hand

Victini - Victory Star: Once during your turn after you flip any coins for an attack, you may ignore...

Can I Victory Star after I attack with Mental Trash or is the fact that my opponent does the flips make it impossible?

 

[PokePop]

You can choose to make them reflip as those flips are part of your attack (even if they are doing them).