You friend has certainly changed in 3 hours.
TBH you look different than in your pic from last week as well.
true .. IF you knew anything, you would know that when at low low bodyfat, the body changes or can change by the hour or hours
I am fatter and smaller .. after a week of clean eating, the water comes of or the puffiness so to speak and in the second pic I am pumped as well as opposed to morning flat and fat ... an "experienced bodybuilder" such as yourself should know these details and spot them easily.