1 more thing, what is the fastest way to have sex with a girl in your house, I have been stuck on the "Have sex with 2 girls in your house while Nake watches" quest for a while.
When you invite a girl to a date at your house, you gotta give them their favorite type of food and drink to boost their Mood.
Unfortunately right now there's not an easy way to know what their favorite type is, you gotta buy different dishes and drinks and try them.