Little sister possession gone wrong

You finally made it! you managed to use your powers to possess your little sister's sexy body! Now it's time for fun! (or at least that's what you thought) So after exploring your sister's body and feeling how hot and tight a woman's body can be there's a knock on the bedroom door... Your little sister's boyfriend! Will you be able to convince him that nothing weird is happening and to leave? Or will this whole possession thing go wrong?