Mom's Stepsister

I have had a crush on my sexy aunt, mom's stepsister Abigale ever since I reached puberty. But still I was a bit ticked off when mom told me she had Abby coming to stay with me for the weekend while they attended some sort of adult weekend retreat. I am 18 years old now but mom still treats me like I am 15 or 16 years old. I will soon find out that Abby will treat me much better than a young teenager. I am about to have the education of my life.