The physical effects were obvious. I could see him swell and groan in his sleep, his body, face, and cock taking on the perfect jock proportions. But it wasn’t till the morning, when he woke up to say a cocky “sup bro” in a new deep voice, stroking his new muscles confidently- that it was obvious. The mental changes were a success. The meek kindhearted roomie I once had was gone, and I got the horny bro I’ve always wanted