F.A 4: My step-son helps me with my date

A new (and the last?) Family adventures chapter!! At this point, my stepson is totally out of control! He constantly teases me at home by showing me his big bulge and groping my ass and boobs without his dad noticing! I can't help myself but feel hornier than ever! Tonight is a special date with my husband... it's our anniversary and I want to be sexy for him... but at the same time I feel sluttier than ever and I want his stepson to help me choose my lingerie and... get ready for my date ;)