3DSVR-0808 - [VR] My sweet, big-breasted sister who can't say no to me, ends up letting me go all the way

They probably aimed for a gap, but she feels way more like a little sister than a big sister. Even with the big sister setting, I wish there had been at least a little bit of resistance or coaxing during insertion. The mom peeks in from time to time, but since you can't see her expression like in 2D, it's not explicit enough to be a turn-on. At the very least, I wanted to see the mom's face head-on, even if it was through the door. Tsubaki-san is a good actress, so a more explicit flow would have worked well. The big sister setting is basically non-existent, but the actress's natural charm comes through, so 4 stars.