My stepmother's granddaughter is in her room, I go in and fuck her really well

I quietly enter my mother-in-law's room and fuck her granddaughter with my strap-on. She is lying on the bed, playing with her phone and dressed in lingerie. I can't control my desire and I touch her and insert my dildo into her vagina and I fuck her very well and she enjoys it a lot, fucking her on all fours and destroying her pussy in missionary.