If that's the worst case scenario, it seems kind of like a let down. I mean basically in that case, regardless of how bad Max might screw things up or get lazy letting Eric run rampant, there's zero risk of Eric ever getting to fuck anyone but Ann and Kira. Pretty disappointing as it feels like there's no real risk. Like a "better treat your wife right or else she might wander and cheat on you by letting other guys see and squeeze her breasts. Nothing more than that though because there's zero chance she'll ever sleep with anyone else."
If some massages and a little touching is the most that ever happens, then it seems to me that the developer(s) are too timid to really push the limits. I was hoping that this game would actually take things further down the NTR path if you started losing to Eric. If that's all that's planned though, it once again feels like dire consequences for Max are teased, yet nothing every happens. Like a bank robber threatening to shoot his hostages with an unloaded gun. "I'll do it! I'll really do it!" "Yawn...okay, then do it." "Aren't you going to try to stop me?" "Why? You're too much of a bitch to ever do anything." Why bother trying to fight against Eric if he never gets anywhere with either of the sisters? There's no suspense without any real danger.