Your mom finds help.

"Honey, watch my purse while I find some help" your mom tells you. You nod in agreement as you watch her walk down the dimly lit aisle. Your eyes following her supple ass, as it sways back and forth with each step. You notice the hard-on slowly forming in your shorts. Dam, you think to yourself, that is a fantastic ass. You take a seat on the futon and wait for your mom to return with help.
Ten minutes go bye and your mom still hasn't returned. You start to worry, that something might of happened.