I take my stepsister's phone and touch her, and her licking my fingers and my penis back for her. She then surprises me by sucking my ejaculation and swallowing her

I had borrowed my stepsister's phone, accidentally touching her. Then I pressed her back down on the bed and she eagerly licked my fingers before taking my penis in her mouth. Then I reciprocated by tasting her, sex went hard and huge climax.