There are no options about the hickey. What I mean is there are some scenes that appear or not depending on previous options. For example, in all options Nicole takes too much alcohol (or is not used to drinking alcohol) in the family dinner at the ending of Part 2. However, we only see MC carrying a drunken Nicole when he hasn't gone to that dinner. When MC is at the family dinner, that scene does not appear.
However, there is an option to start or not the Nicole payment under the table at that family dinner, although it appears or not depending on the options that you have already done previously. And that option has appeared to me both if I go by the Chloe/Beeman cheating route as by the other. In this particular case, I think it is due more to the state of the relationship with Nicole than to the relationship with Chloe (although a really bad relationship with Chloe causes Mr Heavens don't invited MC to that family dinner). The same goes for one of the options when you can take advantage of Nicole while she is asleep on the sofa shortly before the end of Part 1: depending on your previous options, if you decide to take advantage of her and go to her mouth, may or may not appear to have the option of putting MC's dick in her mouth and cumming inside.
On the other hand, there is no anal scene in the whole game, at least for now. Nicole's sexual scene, which you can only see if you choose if MC is witness to the full affair of Chloe and Beeman (I'm not sure if just seeing them kissing allows you to see the option of being rougher with Nicole for remembering that betrayal), is vaginal, not anal.