The chick stood in front of her uncle in her underwear and seduced him into sex
A girl goes into the bathroom and watches her own uncle shave. She purposely didn't wear outerwear because she wanted to show off her underwear and beautiful figure. The uncle immediately had an epiphany from what he saw and guessed the intentions of the saucy bitch. He did not deny her cock and let her suck it, arranging incest. Then the slutty brunette inclined him to hot sex and tasted the very real delight.