My BBW Stepmother watched Me Shower and let Me touch Her Small Tits

I noticed my Stepmother crack the door and look in while I was in the shower, I acted like I didn't notice but couldn't help but start to get hard. Knowing she was watching me I grabbed my dick and started stroking and she lifted her dress to start fingering herself. I opened the door quickly and she knew she was caught. She then offered a hand job and let me grab her small boobs as she made my little dick feel amazing.