That's kind of misleading. It sound like you get to fuck Liza. You don't.
Did you seriously think we were going to fuck a Main Girl before relationship level 5?
And why not? dude, there are many possibilities, positions and places where you can have sex with the same character, imagine having sex with caroline in a different way with all the costumes that have been tried in the store, in the house, in the pool, in the store, in the bathroom of the disco, etc. etc. Some seems that you are satisfied with only one sex position and one place, there are infinite possibilities, and in this update at least one should have been added, because at this step and being the maximum 5 in relation, in 1 year of game we are just going to have 1 sex position with each character, or if we do not remember what icstor did in previous games, remember that she is just one of the many girls in the game, and in each update icstor adds more
(sorry english)