Absolutely true.
I don’t think they actually stared at her. I’m sure they would’ve done much more than stare after having been caught.. from the context of the flashback, I think it was portrayed like that to emphasize how she felt terrified and shocked and disgusted, their glances were purposefully unnerving and such...
Damn, I mean to upvote, sorry ;_;
Ye, that's what I meant sorry
She has every right to be disgusted. Finding out that her sons are dating but finding them having sex first without any context or disclosure plus having them stare at her that way will be disturbing to a lot of people, homophobic or not.