私の親友のガールフレンドは、彼女のボーイフレンドが彼女を満足させないので、私に彼女をファックするように頼みます

I have always liked my best friend's girlfriend, I have never told her but she and I see each other secretly when he is at work I go to her apartment to fuck her very hard because she feels very stressed because her girlfriend has never brought her to orgasm like when she feels my whole cock in her tight pussy.