Bro, according to dialogue they didn't fuck is just all MC though and believe, Beside that Dev show another dialogue about "something is really going on" and another "it is dirtier than MC thinking". Actually they fuck it just MC keep telling him self they are not. And he even refuse to talk about it when stefany try to confess.Long story short... They didn't fuck...yet.
If you want a more detailed explanation, here it goes... If you played the previous update, it ends with the old man "supposedly" fucking the wife. Well... it was all fake, just to provoke the husband. After that, they talk and decide that when she does it with another man (in theory, with the old man), they will use a condom. The update is good. It has several spicy scenes. Some with the old man (BJ, fingering) some with Romeo (the big dork, friend of Erik, the nerd) and some with the Boss (BJ, fingering, riding without penetration). And the provocative ending... She promises him a surprise and appears in the room with a condom and then calls the old man, who appears naked and with a huge boner. In any case, I suppose that in the next update what we're all waiting for will come true.
My recommendation... Download and play the update. It has some good hot scenes. With the old man, with the boss and leaves a window open for some lesbian action with a mature, attractive and busty Japanese woman who wants to hire the wife to be a "lingerie model".