you need negative moral (i guess -10 or more), swim with her and do a big splash with her. you need 600 to 700 affection points for this if i remember it correctly. To get her fully nude you have to play a racing game with her, let her eat dust, demand to remove her panties and spread her legs. beware, you need some affection points here. To get her half nude you need to play computergames with her, tickle her and then be naughty. you will then get the option to use that carrot dildo on her. to be able to use it you need the batteries from the garage and have such high affection with cream that you can demand her to be nude in her own room. attention: ya need high enough affection. inspect the noise you will hear near her room and confront her about the dildo she is using. siply watch the movie and don't do anything naughty. You can get the dildo by watching cartoons with cream.
Inside the garage on the right side somewhere at the shelf you will find batteries. In the living room near the television inside a drawer you will find the garage keys. At the foyer inside the vase you will find the car key.