Leng slow-played his top pair. Action was:
Preflop:
Leng (SB) bet, Jungle (BB) called.
Flop:
Leng check, Jungle bet. Leng called.
Turn:
Check-check.
River:
Leng bet, Jungle raised by half a bet. Leng tanked saying "I'm never good here.", "You must have K7." Showed the Ace and mucked.
Jungleman thought he was value raising since Leng played like he had a smaller pair.
Of course Jungleman showed his hand too. For the next hour or two as Jungle kept chipping up Volpe would look at Leng and say "what did you do to us???" every 30 minutes LMFAO.
Here's Jungle shooting fireballs at his opponents when he wins a big pot: