how i increase lust ? i am level 2 in massage but i cant give no one massage
do you mean lust as in lust on the girls or the protag cuz thats what the arousal ingame means. for lust there are several different ways, one of the most generic is to level up seduction then use seduction topics, for diane im pretty sure you can get it by having her walk in on you watching porn around noon(forgot exact time but sometime around 10-15) early personalities of the family members usually hate seduction topics though.
thats for later in relations and some come with conditions like you need sunscreen to use it on the tanning neighbor (think u need to get her one personality change first. i suggest focusing on the neighbor first im decently sure she is supposed to be the one you start with to build up all your skills cuz she is easiest