Well, I'd imagine with all the gay sex Oliver and SARCASM has...bodyfat decreasing is a possability with all the calories burned during the act itself. I'd reckon that Oliver is the TAKER and sarcasm is the GIVER...I base my theory on that because if sarcasm went down from 25%...to 15% now down to 8%...then alot of hip thrusting and arm movements like spanking and/or hair pulling hence...lots of calories/bodyfat used as fuel to fire through encounters like that...
Maybe he pops an ECA stack before hand I dont know...just a theory.