Πρόκληση στρογγυλοποίησης γλουτών - Ημέρα 2

I had a break over 2 weeks after the 1st day of a Butt rounding challenge due to busy days. So, it's time to come back to my plan. I used a new training program, which appeared for me not easy, but it is exactly what I (my lower body) need