Κάνω καθίσματα στον πούτσο του ετεροθαλούς αδερφού μου μέχρι να πονέσει ο κώλος μου

I stared working out some days ago, and today was leg/ass day, but I hate squats, so I invited my stepbrother to my room to see if he could gave me some ideas to workout my ass better... he had really good ideas...