Possess your older sister Kim

You decide to go possess your 22 year old sister Kim, since she is one of the hottest women you know. She has long blonde hair, D-cup breast and an ass to kill for. Most of your friends couldn't get enough of her and to be honest, you always admired her beauty and her curves too, it was really hard going through puberty with her teasing you always. But now you could do something about it so you exit your body and head straight to her room. As you arrive you can't find her, but suddenly you hear her shower in her own bathroom, which you could only enter through her room. As you slither under the door and into the bathroom you directly see Kim, standing in the shower, naked as the day she was born. Making your way to her you had enough time to examine her nude body. Her huge tits with their nice pink nipples, her amazing ass and her nicely shaven vagina. But suddenly you think, should I possess her directly or should I have some fun first, and if yes, what should I do ?