We've already gone through this in the comments below. Even if you're personally disappointed (which is technically valid—your preferences are your preferences), you have to recognize that this is inappropriate to comment on, and rude as well.
Also, don't you already know what to expect from the sex scenes? The fact that you know what's up with Hiro and you're commenting on the sex scenes before it's even happened means that you've already been given fair "warning." Grey will likely be shocked, but we the audience will not be.