When Josh woke up he still felt the lingering effects of the alcohol. He figured it was a small hangover or that someone had spiked the beer with other substances, which would explain the odd taste. As he got up though he notice he was hot, so hot in fact that he that he couldn't put on more than a pair of boxers. He tried everything to cool off, but nothing would work.
Going downstairs he noticed the keg was still in the middle of the living room. Entranced by it he approached and felt the sides of it. It was cool to the touch! It felt wonderful!
Not in control of what he was doing, Josh pried the top of the keg off. Feeling the coolness of the container he climbed in it. Slowly he noticed the leftover smell of beer was getting stronger and in fact seemed to be coming from him. As he became more aware of where he was and what he was doing he had an overwhelming urge to jerk-off. Grasping his dick through his boxers he noticed that there seemed to be beer head residue all over his shorts; however this was an afterthought because of uncontrollable need he had.
Unnoticed to him his shorts had completely dissolved away by this point into a new beer head. As he stroked his sweat took on the odor of the beer he had drank the night before and began to pour off of him. As it collected in the bottom of the keg it began to come together, first forming feet, then legs, until eventually Jeff was standing naked inside the keg reformed completely from the beer. Josh couldn't stop jerking off though. The pleasure was too strong of an urge and he had become lost in the haze of it.
As Josh started to feel his climax start rise, he moaned from the overwhelming pleasure he felt and as he came beer streamed out of him through his dick and pores until eventually he collapsed into the keg filling it with himself.