It's not working
Not sure why it's not working for you, I went in and tested this out on both the in browser player, and the download of the game, both worked going through the way I explained, I even tested if you need to try and save him or not, and both options still worked, I'll write out what I did in a bit more detail perhaps.
1: Play through the game being as nice to Gomamon, I didn't use dirty talk at all
2: Under Bonding I went through Petting, sexual belly rub, and then flirting, I used flirting multiple times until good was maxed out at the chains
3: Explore until you find the gate, one on of the explore options I carried him up the stairs
4: The Elecmon attack, seemingly doesn't matter if you try and save him or not, try to save him to keep goodness maxed out
5: Explore again and you will have the scene explaining essence
6: Bonding -> Sex -> Clawjob -> unload on his head
7: same as 6, Bonding -> Sex -> Clawjob -> unload on his head
8: Bonding -> Sex -> Blowjob -> cum outside
9: Now click on the empty dialog box to pass time with ... ... ... three or more times and wait briefly for the scene to start and that's the bodyjob scene started
this is what I just did and I typed this out while plaything through the first act again. Hopefully this helps you get it this time.
Uh I guess just make sure you are playing the most upto date version 0.76
Hey there. Someone already gave a very detailed explanation, so I hope you managed to get it. This scene can be missed if you are at the first firewall (after the Elecmon scene and then the drool scene that allows you the Clawjob) and then cum inside Gomamon in any way. You have to always pull out instead. Never inside, giving you the Blowjob option earlier and then screwing it up as well by cumming outside. It is a bit hidden in a way, but that is what makes it special. ^^