My stepbrother asks me for a photo to see me naked on an app

My stepbrother always goes into weird things and this time he asked me for a photo but he wanted it to use it in an app that undresses you. I said yes because I thought it was for something else but then I found him touching his big cock with a photo he had taken with that app. It was very funny and horny and I ended up getting his cock and failing hard with him.