On a more serious note: hyperextensions, abductors and kickbacks can be great! Also various forms of squats and... Bridges? Idk what the last one is called unfortunately

I think Shane has a square butt shape (my brother in butts ✊) idk what Ilya's is called

Which sounds a bit fake but eg looking at Ilya and Shane's asses.... Both stacked and yet shaped differently so maybe it's worth listening to

I've lately also gotten a lot of content about "if you have a square ass then avoid these exercises" so apparently not all asses are created equally

Ilya's actor dropped his routine supposedly