Good Son/ lick her asshole
You get down on your knees, turn the girl around and bend her over a little bit to get good access to her ass. She starts to moan a little louder as you begin to lick over her asshole. You suck at her small asshole while licking at the same time.
"What are you doing? This feels so weird!" the girl says. She grabs the back of your head and tries to shove you deeper into her. You split her hole open with your tongue and probe inside the girl´s anus. She starts to shake. Is the girl cumming from just getting her ass licked? Her breathing and shaking gets even heavier until she finally cums with a loud moan.
Scared someone might have heard you, you quickly get her dressed again.
"Oh! My mom is gonna be here soon! I still didn't choose an outfit! But I guess I don´t need one anyway!" the girl shows you her cute smile and puts all the clothes back from where she got them. A few minutes later her mother picks her up.
Over the next 30 to 40 minutes your mother shows of her body in a lot of different outfits. You are glad when you finally leave the store to go home in the afternoon. Not only because it was pretty boring waiting around while she was changing all the time. You got turned on by your mothers body. Especially her two piece bikini was erotic as fuck.
You gotta get rid of the tension. Your carry the newly bought clothes of your mom to her room. She thanks you and you quickly hurry to your room to jerk off. You realize you forgot your key in her room. Do you want to go back to your mothers room and get it or jerk off now and get the key later?