Yesterday I got out of the shower and was bendin' over to pick somethin' up before gettin' dressed when suddenly a pair of hands grabbed me by the waist and a dick got shoved up my ass. The dick started slidin' in and out of me, and the other person and I both cummed at the same time. The dick was pulled out of my ass and I turned around to see my own brother (he's 15) walkin' away.

I am so confused! Why did my own brother fuck me in my ass?!?!