Hello everyone. So I'm working on Hotter than Hell by KISS. The song is very simple except for one part. The second chord in the song. Paul and Ace play different things but I can't figure out what they are. Some kind of D and G combination. I've watched tons of live footage and have listened to the song over and over again and I just can't get it.

Does anyone have a clue as to the chords the dudes are playing? No BS please. Thanks.