Actually the lounge scenes with mom and Deon *are* contradictory. What exactly the intention is i don't know. Ask the dev. Here a few facts, guesses, and interpretations :
In my game it happens day 7 at 9 PM the first time. Enter, watch it, then leave. It is still 9 PM. No time has passed. Enter again and then leave. It is 10 PM. At 11 PM you can watch mom furiously masturbating in her bedroom, every single night. Does this look like she just got satisfied by her big boyfriend (daily) ?
For once, the scenes could be necessary in order to introduce Deon. You should know how he looks. The dialogues do *not necessarily* mean they had or will have sex (impossible between 9 and 9 PM...) but they can be interpreted that way.
Why is she whispering in an aroused manner, touches him through his pants and is then cuddling ?
As follows : The mom is to be provided with a hyper sex drive aura. Like she can' t control her sexual urges near anyone who has a member, even if she hates him. As well as this is true with other sexes and relatives, we'll see.
What contradicts Deon affairs further is the fact that mom and son get closer and closer in their (sexual) relationship. The bathroom and kitchen scenes advance more over time.
My final verdict is that the lounge scenes make no sense and contradict everything else that is happening in the game on the non NTR path - even if they are meant to make the mom look like a helpless sex addict or provide an atmosphere of tension. They should be changed, it is not even right for the NTR path ( sex in 0 seconds). Come on dev you can do that, these are only two scenes. Like, they should sit apart and Deon makes advances but mom rejects or even insults him. Whatever. My guess is that the two routes in the game got mixed up there, and the logical one fell under the table.
Reserve these scenes for the NTR path and implement correct ones please.
Edit : Changed 'day 9' to 'day 7`'. There is no visible save for it.