It isn't cheating until she confesses? Well, I suppose that is true, but you see...It's also not cheating when her practice partner is also her future lover.
Also...All according to plan, eh? Well, sort of anyway. She was trying to make him a putty in her hands, but instead he took the lead and sort of confessed to her halfway through. So it all worked out perfectly fine in the end.
I'm a little surprised he didn't see that confession coming XD. She totally had the hots for him, she let him do her raw haha. Damn this was fucking hot! I really like how Oohira Sunset drew her bush.
Evidently Matsuki-chan used 'Just According To Plan' Strategy; so that Senpai made up his mind that he wasn't gonna give her up to anyone, even before she revealed that he was the target of her confession.