You act all serious in front of everyone... but your head is actually full of dirty thoughts!! 」A plain and serious girl one day sees her notorious slut friend perform unbelievable sex acts right in front of her! Pretending to be disinterested, but actually super curious and even wants to have sex together! A slutty girl who noticed a serious girl forcefully (?) invites her to an unexpected threesome, getting super excited! The serious girl, who takes off her usual mask, overwhelms the slutty girl with her moans! Her long-suppressed desires explode!!
