>>26853033Anything burlier and bulkier than him. Bonus humiliation points for pokemon normally easily defeated by him--Ursaring, Pangoro, Beartic, Aggron, Slaking. To rub it in (pun intended) how much of a bitch he is.
Hariyama is a must, I can imagine all those years being outclasses by someone tinier has caused a lot of pent up rage that Hariyama is more than willing to unleash.
And for a real role reversal power play, a lowly small punk like Scrafty to really fuck him in the ass. Punks dominating "alpha" jocks are always entertainingly and humiliatingly hot. Everytime Machamp moans and cums, Scrafty'a moxie is activated, easily turning his punk nigger dick into a BBC that would dwarf Machamp's really humiliating him into the role of a submissive cumslut bitch
Maybe something exotic like a Charizard, a Blastoise. A Houndoom. A Tauros or a Bouffalant. A fucking Steelix.
I would break him, body, mind and soul >:)