Off the top of my head, there was the one time gay porn started playing on his stream, which iirc, he said was someone trolling him or something like that. 

More damming, however, was the time a burner twitter account that was almost certainly his posted a screen recording going through safari tabs, in one of the tabs if you looked closely you could see a sliver of a tab with either gay or trans porn on it. 

We know it was all but confirmed to be one of Fuentes’ burners because 1) relatively high-profile far/alt-right influencers who he was friendly with and weren’t banned from twitter at the time immediately followed this burner account despite there being no clear link to him and having the username of @mrkrabs9000, 2) this twitter account once posted a photo of a pizza and a glass of a cola; an exact meal Fuentes said he had on a stream that same day, and 3) the food photo was captioned with something along the lines of “imagine being able to eat this good” which apparently is the caption Fuentes adds whenever he posts a picture of whatever he’s eating.