I think something that would be nice and that would feel natural is if during the evening when they can have dinner, if they have enough "sharing" points and a good relationship, they can talk about each bull - or a girl that Alex fucks in his case - about which one they like, what they like about them, their opinions on which person is good for their partner and so on. Basically which guy Alex likes Sarah to have sex with and which girl Sarah likes for Alex to fuck, and why.
Like for example:
Alex could say that it's so hot when Eric ravishes Sara with his big black cock.
Or that it's pretty hot that Sarah gets pounded by Neil and they both get benefits in the company. (assuming the latter part happens)
And Sarah could say she finds it hot when Alex is fucking their neighbour Jessica while her husband is watching them.
And so on...
This could also be a way of raising points during the sandbox part since I remember the dev saying he would add ways to do that.
